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Class 5 Exam  >  Class 5 Questions  >  Four terms a, b, c, d are said to be in propo... Start Learning for Free
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Four terms a, b, c, d are said to be in proportion if.
  • a)
    a : b = c : d
  • b)
    a : c = d : b
  • c)
    a : d = b : c
  • d)
    None of these 
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
Four terms a, b, c, d are said to be in proportion if.a)a : b = c : db...
Four terms a, b, c, d are said to be in proportion if a : b = c : d.
It means that the ratio of the first term (a) to the second term (b) is equal to the ratio of the third term (c) to the fourth term (d). This relationship is also known as direct proportion.
Option 'A' a : b = c : d is the correct answer.
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Most Upvoted Answer
Four terms a, b, c, d are said to be in proportion if.a)a : b = c : db...
Explanation:

To understand why option 'A' is the correct answer, we need to understand the concept of proportions. In mathematics, four terms a, b, c, and d are said to be in proportion if the ratio of the first term to the second term is equal to the ratio of the third term to the fourth term. It can be represented as:

a : b = c : d

Let's break down the options and analyze them one by one:

Option A:
a : b = c : d

This is the correct representation of proportions. The ratio of a to b is equal to the ratio of c to d.

Option B:
a : c = d : b

This is not a correct representation of proportions. The ratio of a to c is not equal to the ratio of d to b. In proportions, the terms on the left side of the ratio should be corresponding to each other.

Option C:
a : d = b : c

This is not a correct representation of proportions. The ratio of a to d is not equal to the ratio of b to c. Again, the terms on the left side of the ratio should correspond to each other.

Option D:
None of these

This option implies that none of the given options correctly represents proportions. However, as we analyzed earlier, option A is the correct representation of proportions.

Therefore, the correct answer is option 'A' - a : b = c : d.
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Community Answer
Four terms a, b, c, d are said to be in proportion if.a)a : b = c : db...
Four terms �� a, �� b, �� c, and �� d are said to be in proportion if:
a:b=c:d This means that the ratio of the first two terms is equal to the ratio of the last two terms.
So, the correct answer is:
A:a : b = c : d
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Passage – 2King Akbar was very fond of Birbal. This made a certain courtier very jealous. Now this courtier always wanted to be chief minister, but this was not possible as Birbal filled that position. One day Akbar praised Birbal in front of the courtier. This made the courtier very angry and he said that the king praised Birbal unjustly and if Birbal could answer three of his questions, he would accept the fact that Birbal was intelligent. Akbar always wanting to test Birbal’s wit readily agreed. The three questions were 1. How many stars are there in the sky? 2. Where is the centre of the Earth? 3. How many men and how many women are there in the world? Immediately Akbar asked Birbal the three questions and informed him that if he could not answer them, he would have to resign as chief minister. To answer the first question, Birbal brought a hairy sheep and said, There are as many stars in the sky as there is hair on the sheep’s body. My friend the courtier is welcome to count them if he likes. To answer the second question, Birbal drew a couple of lines on the floor and bore an iron rod in it and said, this is the centre of the Earth, the courtier may measure it himself if he has any doubts. In answer to the third question, Birbal said, Counting the exact number of men and women in the world would be a problem as there are some specimens like our courtier friend here who cannot easily be classified as either. Therefore if all people like him are killed, then and only then can one count the exact number.Choose the most appropriate synonym for the underlined word from the options listed belowQ. Birbal also asked the courtier to confirm his reply.

Passage – 2King Akbar was very fond of Birbal. This made a certain courtier very jealous. Now this courtier always wanted to be chief minister, but this was not possible as Birbal filled that position. One day Akbar praised Birbal in front of the courtier. This made the courtier very angry and he said that the king praised Birbal unjustly and if Birbal could answer three of his questions, he would accept the fact that Birbal was intelligent. Akbar always wanting to test Birbal’s wit readily agreed. The three questions were 1. How many stars are there in the sky? 2. Where is the centre of the Earth? 3. How many men and how many women are there in the world? Immediately Akbar asked Birbal the three questions and informed him that if he could not answer them, he would have to resign as chief minister. To answer the first question, Birbal brought a hairy sheep and said, There are as many stars in the sky as there is hair on the sheep’s body. My friend the courtier is welcome to count them if he likes. To answer the second question, Birbal drew a couple of lines on the floor and bore an iron rod in it and said, this is the centre of the Earth, the courtier may measure it himself if he has any doubts. In answer to the third question, Birbal said, Counting the exact number of men and women in the world would be a problem as there are some specimens like our courtier friend here who cannot easily be classified as either. Therefore if all people like him are killed, then and only then can one count the exact number.Choose the most appropriate synonym for the underlined word from the options listed belowQ. The courtier said that the king praised Birbal unjustly.

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Four terms a, b, c, d are said to be in proportion if.a)a : b = c : db)a : c = d : bc)a : d = b : cd)None of theseCorrect answer is option 'A'. Can you explain this answer?
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