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Directions for Questions Analyse the following passage and provide appropriate answers. An example of a scientist who could measure without instruments is Enrico Fermi (1901-1954), a physicist who won the Nobel Prize in physics in 1938. He had a Well-developed knack for intuitive, even casual sounding measurements. One renowned example of his measurement skills was demonstrated at the first detonation of the atom bomb, the Trinity Test site, on July 16, 1945, where he was one of the atomic scientists observing from base camp. While final adjustments were being made to instruments used to measure the yield of the blast, Fermi was making confetti out of a page of notebook paper. As the wind from the initial blast wave began to blow through the camp, he slowly dribbled the confetti into the air, observing how far back it was scattered by the blast (taking the farthest scattered pieces as being the peak of the pressure wave), Fermi concluded that the yield must be greater than 10 kilotons. This would have been news, since other initial observers of the blast did not know that lower limit. After much analysis of the instrument readings, the final yield estimate was determined to be 18.6 kilotons. Like Eratosthenes7 Fermi was aware of a rule relating one simple observation-the scattering of confetti in the Wind To a quantity he wanted to measure. The value of quick estimates was something Fermi was familiar with throughout his career. He was famous for teaching his students skills at approximation of fanciful-sounding quantities that, at first glance, they might presume they knew nothing about. The best-known example of such a Fermi question was Fermi asking his students to estimate the number of piano tuners in Chicago, when no one knows the answer. His students science and engineering majors-would begin by saying that they could not possibly know anything about such a quantity. Of course, some solutions would be to simply do a count of every piano tuner perhaps by looking up advertisements, checking with a licensing agency of some sort, and so on. But Fermi was trying to teach his students how to solve problems where the ability to confirm the results would not be so easy. He wanted them to figure out that they knew something about the quantity in question.
Given below are some statements that attempt to capture the central idea of the passage:
1. It is useful to estimate; even when the exact answer is known.
2. It is possible to estimate any physical quantity.
3. It is possible to estimate the number of units of a newly launched car that can be sold in a city
4. Fermi was a genius.
Which of the following statements (s) best captures the central idea?
  • a)
    1, 2 and 4
  • b)
    2, 3 and 4
  • c)
    2 and 3
  • d)
    2 only
  • e)
    1, 2 and 3
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Directions for Questions Analyse the following passage and provide ap...
The given passage is based on Enrico Fermi, a physicist, who had a knack for intuitive measurements and could measure without instruments. According to the passage, estimation helps when the ability to confirm results is not too easy, so statement 1 is ruled out. Statement 2 captures the main idea of the passage since the passage highlights the possibility and usefulness of estimation. Statements 3 and 4 are too narrow to be a central idea of the passage. Therefore, option 4 is the answer.
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Most Upvoted Answer
Directions for Questions Analyse the following passage and provide ap...
Central Idea of the Passage:

Estimation is a valuable skill:
- The passage highlights the importance of estimation, even when the exact answer is known.
- Fermi's ability to make accurate estimates without instruments showcases the value of this skill.

Estimating any physical quantity:
- Fermi's ability to estimate the yield of the atom bomb blast using a simple observation demonstrates that it is possible to estimate any physical quantity.
- He also taught his students how to approximate quantities they initially thought they knew nothing about.

Challenging estimation problems:
- Fermi posed challenging estimation problems to his students, such as estimating the number of piano tuners in Chicago, to teach them problem-solving skills in situations where confirming results would be difficult.
- This shows that it is possible to estimate even when direct information is not readily available.
Therefore, statement 2 (It is possible to estimate any physical quantity) and statement 3 (It is possible to estimate the number of units of a newly launched car that can be sold in a city) best capture the central idea of the passage, making option D the correct answer.
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Directions for Questions Analyse the following passage and provide appropriate answers. An example of a scientist who could measure without instruments is Enrico Fermi (1901-1954), a physicist who won the Nobel Prize in physics in 1938. He had a Well-developed knack for intuitive, even casual sounding measurements. One renowned example of his measurement skills was demonstrated at the first detonation of the atom bomb, the Trinity Test site, on July 16, 1945, where he was one of the atomic scientists observing from base camp. While final adjustments were being made to instruments used to measure the yield of the blast, Fermi was making confetti out of a page of notebook paper. As the wind from the initial blast wave began to blow through the camp, he slowly dribbled the confetti into the air, observing how far back it was scattered by the blast (taking the farthest scattered pieces as being the peak of the pressure wave), Fermi concluded that the yield must be greater than 10 kilotons. This would have been news, since other initial observers of the blast did not know that lower limit. After much analysis of the instrument readings, the final yield estimate was determined to be 18.6 kilotons. Like Eratosthenes7 Fermi was aware of a rule relating one simple observation-the scattering of confetti in the Wind To a quantity he wanted to measure. The value of quick estimates was something Fermi was familiar with throughout his career. He was famous for teaching his students skills at approximation of fanciful-sounding quantities that, at first glance, they might presume they knew nothing about. The best-known example of such a Fermi question was Fermi asking his students to estimate the number of piano tuners in Chicago, when no one knows the answer. His students science and engineering majors-would begin by saying that they could not possibly know anything about such a quantity. Of course, some solutions would be to simply do a count of every piano tuner perhaps by looking up advertisements, checking with a licensing agency of some sort, and so on. But Fermi was trying to teach his students how to solve problems where the ability to confirm the results would not be so easy. He wanted them to figure out that they knew something about the quantity in question.Given below are some statements that attempt to capture the central idea of the passage:1. It is useful to estimate; even when the exact answer is known.2. It is possible to estimate any physical quantity.3. It is possible to estimate the number of units of a newly launched car that can be sold in a city4. Fermi was a genius.Which of the following statements (s) best captures the central idea?a) 1, 2 and 4b) 2, 3 and 4c) 2 and 3d) 2 onlye) 1, 2 and 3Correct answer is option 'D'. Can you explain this answer?
Question Description
Directions for Questions Analyse the following passage and provide appropriate answers. An example of a scientist who could measure without instruments is Enrico Fermi (1901-1954), a physicist who won the Nobel Prize in physics in 1938. He had a Well-developed knack for intuitive, even casual sounding measurements. One renowned example of his measurement skills was demonstrated at the first detonation of the atom bomb, the Trinity Test site, on July 16, 1945, where he was one of the atomic scientists observing from base camp. While final adjustments were being made to instruments used to measure the yield of the blast, Fermi was making confetti out of a page of notebook paper. As the wind from the initial blast wave began to blow through the camp, he slowly dribbled the confetti into the air, observing how far back it was scattered by the blast (taking the farthest scattered pieces as being the peak of the pressure wave), Fermi concluded that the yield must be greater than 10 kilotons. This would have been news, since other initial observers of the blast did not know that lower limit. After much analysis of the instrument readings, the final yield estimate was determined to be 18.6 kilotons. Like Eratosthenes7 Fermi was aware of a rule relating one simple observation-the scattering of confetti in the Wind To a quantity he wanted to measure. The value of quick estimates was something Fermi was familiar with throughout his career. He was famous for teaching his students skills at approximation of fanciful-sounding quantities that, at first glance, they might presume they knew nothing about. The best-known example of such a Fermi question was Fermi asking his students to estimate the number of piano tuners in Chicago, when no one knows the answer. His students science and engineering majors-would begin by saying that they could not possibly know anything about such a quantity. Of course, some solutions would be to simply do a count of every piano tuner perhaps by looking up advertisements, checking with a licensing agency of some sort, and so on. But Fermi was trying to teach his students how to solve problems where the ability to confirm the results would not be so easy. He wanted them to figure out that they knew something about the quantity in question.Given below are some statements that attempt to capture the central idea of the passage:1. It is useful to estimate; even when the exact answer is known.2. It is possible to estimate any physical quantity.3. It is possible to estimate the number of units of a newly launched car that can be sold in a city4. Fermi was a genius.Which of the following statements (s) best captures the central idea?a) 1, 2 and 4b) 2, 3 and 4c) 2 and 3d) 2 onlye) 1, 2 and 3Correct answer is option 'D'. Can you explain this answer? for CAT 2024 is part of CAT preparation. The Question and answers have been prepared according to the CAT exam syllabus. Information about Directions for Questions Analyse the following passage and provide appropriate answers. An example of a scientist who could measure without instruments is Enrico Fermi (1901-1954), a physicist who won the Nobel Prize in physics in 1938. He had a Well-developed knack for intuitive, even casual sounding measurements. One renowned example of his measurement skills was demonstrated at the first detonation of the atom bomb, the Trinity Test site, on July 16, 1945, where he was one of the atomic scientists observing from base camp. While final adjustments were being made to instruments used to measure the yield of the blast, Fermi was making confetti out of a page of notebook paper. As the wind from the initial blast wave began to blow through the camp, he slowly dribbled the confetti into the air, observing how far back it was scattered by the blast (taking the farthest scattered pieces as being the peak of the pressure wave), Fermi concluded that the yield must be greater than 10 kilotons. This would have been news, since other initial observers of the blast did not know that lower limit. After much analysis of the instrument readings, the final yield estimate was determined to be 18.6 kilotons. Like Eratosthenes7 Fermi was aware of a rule relating one simple observation-the scattering of confetti in the Wind To a quantity he wanted to measure. The value of quick estimates was something Fermi was familiar with throughout his career. He was famous for teaching his students skills at approximation of fanciful-sounding quantities that, at first glance, they might presume they knew nothing about. The best-known example of such a Fermi question was Fermi asking his students to estimate the number of piano tuners in Chicago, when no one knows the answer. His students science and engineering majors-would begin by saying that they could not possibly know anything about such a quantity. Of course, some solutions would be to simply do a count of every piano tuner perhaps by looking up advertisements, checking with a licensing agency of some sort, and so on. But Fermi was trying to teach his students how to solve problems where the ability to confirm the results would not be so easy. He wanted them to figure out that they knew something about the quantity in question.Given below are some statements that attempt to capture the central idea of the passage:1. It is useful to estimate; even when the exact answer is known.2. It is possible to estimate any physical quantity.3. It is possible to estimate the number of units of a newly launched car that can be sold in a city4. Fermi was a genius.Which of the following statements (s) best captures the central idea?a) 1, 2 and 4b) 2, 3 and 4c) 2 and 3d) 2 onlye) 1, 2 and 3Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for CAT 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Directions for Questions Analyse the following passage and provide appropriate answers. An example of a scientist who could measure without instruments is Enrico Fermi (1901-1954), a physicist who won the Nobel Prize in physics in 1938. He had a Well-developed knack for intuitive, even casual sounding measurements. One renowned example of his measurement skills was demonstrated at the first detonation of the atom bomb, the Trinity Test site, on July 16, 1945, where he was one of the atomic scientists observing from base camp. While final adjustments were being made to instruments used to measure the yield of the blast, Fermi was making confetti out of a page of notebook paper. As the wind from the initial blast wave began to blow through the camp, he slowly dribbled the confetti into the air, observing how far back it was scattered by the blast (taking the farthest scattered pieces as being the peak of the pressure wave), Fermi concluded that the yield must be greater than 10 kilotons. This would have been news, since other initial observers of the blast did not know that lower limit. After much analysis of the instrument readings, the final yield estimate was determined to be 18.6 kilotons. Like Eratosthenes7 Fermi was aware of a rule relating one simple observation-the scattering of confetti in the Wind To a quantity he wanted to measure. The value of quick estimates was something Fermi was familiar with throughout his career. He was famous for teaching his students skills at approximation of fanciful-sounding quantities that, at first glance, they might presume they knew nothing about. The best-known example of such a Fermi question was Fermi asking his students to estimate the number of piano tuners in Chicago, when no one knows the answer. His students science and engineering majors-would begin by saying that they could not possibly know anything about such a quantity. Of course, some solutions would be to simply do a count of every piano tuner perhaps by looking up advertisements, checking with a licensing agency of some sort, and so on. But Fermi was trying to teach his students how to solve problems where the ability to confirm the results would not be so easy. He wanted them to figure out that they knew something about the quantity in question.Given below are some statements that attempt to capture the central idea of the passage:1. It is useful to estimate; even when the exact answer is known.2. It is possible to estimate any physical quantity.3. It is possible to estimate the number of units of a newly launched car that can be sold in a city4. Fermi was a genius.Which of the following statements (s) best captures the central idea?a) 1, 2 and 4b) 2, 3 and 4c) 2 and 3d) 2 onlye) 1, 2 and 3Correct answer is option 'D'. Can you explain this answer?.
Solutions for Directions for Questions Analyse the following passage and provide appropriate answers. An example of a scientist who could measure without instruments is Enrico Fermi (1901-1954), a physicist who won the Nobel Prize in physics in 1938. He had a Well-developed knack for intuitive, even casual sounding measurements. One renowned example of his measurement skills was demonstrated at the first detonation of the atom bomb, the Trinity Test site, on July 16, 1945, where he was one of the atomic scientists observing from base camp. While final adjustments were being made to instruments used to measure the yield of the blast, Fermi was making confetti out of a page of notebook paper. As the wind from the initial blast wave began to blow through the camp, he slowly dribbled the confetti into the air, observing how far back it was scattered by the blast (taking the farthest scattered pieces as being the peak of the pressure wave), Fermi concluded that the yield must be greater than 10 kilotons. This would have been news, since other initial observers of the blast did not know that lower limit. After much analysis of the instrument readings, the final yield estimate was determined to be 18.6 kilotons. Like Eratosthenes7 Fermi was aware of a rule relating one simple observation-the scattering of confetti in the Wind To a quantity he wanted to measure. The value of quick estimates was something Fermi was familiar with throughout his career. He was famous for teaching his students skills at approximation of fanciful-sounding quantities that, at first glance, they might presume they knew nothing about. The best-known example of such a Fermi question was Fermi asking his students to estimate the number of piano tuners in Chicago, when no one knows the answer. His students science and engineering majors-would begin by saying that they could not possibly know anything about such a quantity. Of course, some solutions would be to simply do a count of every piano tuner perhaps by looking up advertisements, checking with a licensing agency of some sort, and so on. But Fermi was trying to teach his students how to solve problems where the ability to confirm the results would not be so easy. He wanted them to figure out that they knew something about the quantity in question.Given below are some statements that attempt to capture the central idea of the passage:1. It is useful to estimate; even when the exact answer is known.2. It is possible to estimate any physical quantity.3. It is possible to estimate the number of units of a newly launched car that can be sold in a city4. Fermi was a genius.Which of the following statements (s) best captures the central idea?a) 1, 2 and 4b) 2, 3 and 4c) 2 and 3d) 2 onlye) 1, 2 and 3Correct answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for CAT. Download more important topics, notes, lectures and mock test series for CAT Exam by signing up for free.
Here you can find the meaning of Directions for Questions Analyse the following passage and provide appropriate answers. An example of a scientist who could measure without instruments is Enrico Fermi (1901-1954), a physicist who won the Nobel Prize in physics in 1938. He had a Well-developed knack for intuitive, even casual sounding measurements. One renowned example of his measurement skills was demonstrated at the first detonation of the atom bomb, the Trinity Test site, on July 16, 1945, where he was one of the atomic scientists observing from base camp. While final adjustments were being made to instruments used to measure the yield of the blast, Fermi was making confetti out of a page of notebook paper. As the wind from the initial blast wave began to blow through the camp, he slowly dribbled the confetti into the air, observing how far back it was scattered by the blast (taking the farthest scattered pieces as being the peak of the pressure wave), Fermi concluded that the yield must be greater than 10 kilotons. This would have been news, since other initial observers of the blast did not know that lower limit. After much analysis of the instrument readings, the final yield estimate was determined to be 18.6 kilotons. Like Eratosthenes7 Fermi was aware of a rule relating one simple observation-the scattering of confetti in the Wind To a quantity he wanted to measure. The value of quick estimates was something Fermi was familiar with throughout his career. He was famous for teaching his students skills at approximation of fanciful-sounding quantities that, at first glance, they might presume they knew nothing about. The best-known example of such a Fermi question was Fermi asking his students to estimate the number of piano tuners in Chicago, when no one knows the answer. His students science and engineering majors-would begin by saying that they could not possibly know anything about such a quantity. Of course, some solutions would be to simply do a count of every piano tuner perhaps by looking up advertisements, checking with a licensing agency of some sort, and so on. But Fermi was trying to teach his students how to solve problems where the ability to confirm the results would not be so easy. He wanted them to figure out that they knew something about the quantity in question.Given below are some statements that attempt to capture the central idea of the passage:1. It is useful to estimate; even when the exact answer is known.2. It is possible to estimate any physical quantity.3. It is possible to estimate the number of units of a newly launched car that can be sold in a city4. Fermi was a genius.Which of the following statements (s) best captures the central idea?a) 1, 2 and 4b) 2, 3 and 4c) 2 and 3d) 2 onlye) 1, 2 and 3Correct answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Directions for Questions Analyse the following passage and provide appropriate answers. An example of a scientist who could measure without instruments is Enrico Fermi (1901-1954), a physicist who won the Nobel Prize in physics in 1938. He had a Well-developed knack for intuitive, even casual sounding measurements. One renowned example of his measurement skills was demonstrated at the first detonation of the atom bomb, the Trinity Test site, on July 16, 1945, where he was one of the atomic scientists observing from base camp. While final adjustments were being made to instruments used to measure the yield of the blast, Fermi was making confetti out of a page of notebook paper. As the wind from the initial blast wave began to blow through the camp, he slowly dribbled the confetti into the air, observing how far back it was scattered by the blast (taking the farthest scattered pieces as being the peak of the pressure wave), Fermi concluded that the yield must be greater than 10 kilotons. This would have been news, since other initial observers of the blast did not know that lower limit. After much analysis of the instrument readings, the final yield estimate was determined to be 18.6 kilotons. Like Eratosthenes7 Fermi was aware of a rule relating one simple observation-the scattering of confetti in the Wind To a quantity he wanted to measure. The value of quick estimates was something Fermi was familiar with throughout his career. He was famous for teaching his students skills at approximation of fanciful-sounding quantities that, at first glance, they might presume they knew nothing about. The best-known example of such a Fermi question was Fermi asking his students to estimate the number of piano tuners in Chicago, when no one knows the answer. His students science and engineering majors-would begin by saying that they could not possibly know anything about such a quantity. Of course, some solutions would be to simply do a count of every piano tuner perhaps by looking up advertisements, checking with a licensing agency of some sort, and so on. But Fermi was trying to teach his students how to solve problems where the ability to confirm the results would not be so easy. He wanted them to figure out that they knew something about the quantity in question.Given below are some statements that attempt to capture the central idea of the passage:1. It is useful to estimate; even when the exact answer is known.2. It is possible to estimate any physical quantity.3. It is possible to estimate the number of units of a newly launched car that can be sold in a city4. Fermi was a genius.Which of the following statements (s) best captures the central idea?a) 1, 2 and 4b) 2, 3 and 4c) 2 and 3d) 2 onlye) 1, 2 and 3Correct answer is option 'D'. Can you explain this answer?, a detailed solution for Directions for Questions Analyse the following passage and provide appropriate answers. An example of a scientist who could measure without instruments is Enrico Fermi (1901-1954), a physicist who won the Nobel Prize in physics in 1938. He had a Well-developed knack for intuitive, even casual sounding measurements. One renowned example of his measurement skills was demonstrated at the first detonation of the atom bomb, the Trinity Test site, on July 16, 1945, where he was one of the atomic scientists observing from base camp. While final adjustments were being made to instruments used to measure the yield of the blast, Fermi was making confetti out of a page of notebook paper. As the wind from the initial blast wave began to blow through the camp, he slowly dribbled the confetti into the air, observing how far back it was scattered by the blast (taking the farthest scattered pieces as being the peak of the pressure wave), Fermi concluded that the yield must be greater than 10 kilotons. This would have been news, since other initial observers of the blast did not know that lower limit. After much analysis of the instrument readings, the final yield estimate was determined to be 18.6 kilotons. Like Eratosthenes7 Fermi was aware of a rule relating one simple observation-the scattering of confetti in the Wind To a quantity he wanted to measure. The value of quick estimates was something Fermi was familiar with throughout his career. He was famous for teaching his students skills at approximation of fanciful-sounding quantities that, at first glance, they might presume they knew nothing about. The best-known example of such a Fermi question was Fermi asking his students to estimate the number of piano tuners in Chicago, when no one knows the answer. His students science and engineering majors-would begin by saying that they could not possibly know anything about such a quantity. Of course, some solutions would be to simply do a count of every piano tuner perhaps by looking up advertisements, checking with a licensing agency of some sort, and so on. But Fermi was trying to teach his students how to solve problems where the ability to confirm the results would not be so easy. He wanted them to figure out that they knew something about the quantity in question.Given below are some statements that attempt to capture the central idea of the passage:1. It is useful to estimate; even when the exact answer is known.2. It is possible to estimate any physical quantity.3. It is possible to estimate the number of units of a newly launched car that can be sold in a city4. Fermi was a genius.Which of the following statements (s) best captures the central idea?a) 1, 2 and 4b) 2, 3 and 4c) 2 and 3d) 2 onlye) 1, 2 and 3Correct answer is option 'D'. Can you explain this answer? has been provided alongside types of Directions for Questions Analyse the following passage and provide appropriate answers. An example of a scientist who could measure without instruments is Enrico Fermi (1901-1954), a physicist who won the Nobel Prize in physics in 1938. He had a Well-developed knack for intuitive, even casual sounding measurements. One renowned example of his measurement skills was demonstrated at the first detonation of the atom bomb, the Trinity Test site, on July 16, 1945, where he was one of the atomic scientists observing from base camp. While final adjustments were being made to instruments used to measure the yield of the blast, Fermi was making confetti out of a page of notebook paper. As the wind from the initial blast wave began to blow through the camp, he slowly dribbled the confetti into the air, observing how far back it was scattered by the blast (taking the farthest scattered pieces as being the peak of the pressure wave), Fermi concluded that the yield must be greater than 10 kilotons. This would have been news, since other initial observers of the blast did not know that lower limit. After much analysis of the instrument readings, the final yield estimate was determined to be 18.6 kilotons. Like Eratosthenes7 Fermi was aware of a rule relating one simple observation-the scattering of confetti in the Wind To a quantity he wanted to measure. The value of quick estimates was something Fermi was familiar with throughout his career. He was famous for teaching his students skills at approximation of fanciful-sounding quantities that, at first glance, they might presume they knew nothing about. The best-known example of such a Fermi question was Fermi asking his students to estimate the number of piano tuners in Chicago, when no one knows the answer. His students science and engineering majors-would begin by saying that they could not possibly know anything about such a quantity. Of course, some solutions would be to simply do a count of every piano tuner perhaps by looking up advertisements, checking with a licensing agency of some sort, and so on. But Fermi was trying to teach his students how to solve problems where the ability to confirm the results would not be so easy. He wanted them to figure out that they knew something about the quantity in question.Given below are some statements that attempt to capture the central idea of the passage:1. It is useful to estimate; even when the exact answer is known.2. It is possible to estimate any physical quantity.3. It is possible to estimate the number of units of a newly launched car that can be sold in a city4. Fermi was a genius.Which of the following statements (s) best captures the central idea?a) 1, 2 and 4b) 2, 3 and 4c) 2 and 3d) 2 onlye) 1, 2 and 3Correct answer is option 'D'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Directions for Questions Analyse the following passage and provide appropriate answers. An example of a scientist who could measure without instruments is Enrico Fermi (1901-1954), a physicist who won the Nobel Prize in physics in 1938. He had a Well-developed knack for intuitive, even casual sounding measurements. One renowned example of his measurement skills was demonstrated at the first detonation of the atom bomb, the Trinity Test site, on July 16, 1945, where he was one of the atomic scientists observing from base camp. While final adjustments were being made to instruments used to measure the yield of the blast, Fermi was making confetti out of a page of notebook paper. As the wind from the initial blast wave began to blow through the camp, he slowly dribbled the confetti into the air, observing how far back it was scattered by the blast (taking the farthest scattered pieces as being the peak of the pressure wave), Fermi concluded that the yield must be greater than 10 kilotons. This would have been news, since other initial observers of the blast did not know that lower limit. After much analysis of the instrument readings, the final yield estimate was determined to be 18.6 kilotons. Like Eratosthenes7 Fermi was aware of a rule relating one simple observation-the scattering of confetti in the Wind To a quantity he wanted to measure. The value of quick estimates was something Fermi was familiar with throughout his career. He was famous for teaching his students skills at approximation of fanciful-sounding quantities that, at first glance, they might presume they knew nothing about. The best-known example of such a Fermi question was Fermi asking his students to estimate the number of piano tuners in Chicago, when no one knows the answer. His students science and engineering majors-would begin by saying that they could not possibly know anything about such a quantity. Of course, some solutions would be to simply do a count of every piano tuner perhaps by looking up advertisements, checking with a licensing agency of some sort, and so on. But Fermi was trying to teach his students how to solve problems where the ability to confirm the results would not be so easy. He wanted them to figure out that they knew something about the quantity in question.Given below are some statements that attempt to capture the central idea of the passage:1. It is useful to estimate; even when the exact answer is known.2. It is possible to estimate any physical quantity.3. It is possible to estimate the number of units of a newly launched car that can be sold in a city4. Fermi was a genius.Which of the following statements (s) best captures the central idea?a) 1, 2 and 4b) 2, 3 and 4c) 2 and 3d) 2 onlye) 1, 2 and 3Correct answer is option 'D'. Can you explain this answer? tests, examples and also practice CAT tests.
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