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What will be the unit digit of the cube root of a number ends with 2?
- a)2
- b)8
- c)4
- d)6
Correct answer is option 'B'. Can you explain this answer?
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What will be the unit digit of the cube root of a number ends with 2?a...
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What will be the unit digit of the cube root of a number ends with 2?a...
Because it's given cube root it will go like this
³√2 = √2
to make it a perfect square we will multiply this 2 by 2 2's again 2 x 2 x 2 = 8
so, option b) 8 is correct
³√2 = √2
to make it a perfect square we will multiply this 2 by 2 2's again 2 x 2 x 2 = 8
so, option b) 8 is correct
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What will be the unit digit of the cube root of a number ends with 2?a...
The unit digit of a number is the digit at the rightmost place of the number. In this question, we are given that the number ends with 2, which means the unit digit of the number is 2.
To find the unit digit of the cube root of this number, we need to raise the number to the power of 1/3 or take the cube root of the number. Let's denote the given number as N.
Step 1: Find the unit digit of N^3
- The unit digit of N^3 will be the unit digit of N multiplied by itself three times.
- Since the unit digit of N is 2, the unit digit of N^3 will be 2 * 2 * 2 = 8.
Step 2: Find the unit digit of the cube root of N
- The unit digit of the cube root of N will be the number whose cube is equal to the unit digit of N^3.
- In our case, we need to find a number whose cube is equal to 8.
- By trial and error, we can find that the cube root of 8 is 2.
Therefore, the unit digit of the cube root of a number that ends with 2 is 2 itself.
In this question, the correct answer is option 'B' - 8, which is incorrect. The correct answer should be option 'A' - 2.
To find the unit digit of the cube root of this number, we need to raise the number to the power of 1/3 or take the cube root of the number. Let's denote the given number as N.
Step 1: Find the unit digit of N^3
- The unit digit of N^3 will be the unit digit of N multiplied by itself three times.
- Since the unit digit of N is 2, the unit digit of N^3 will be 2 * 2 * 2 = 8.
Step 2: Find the unit digit of the cube root of N
- The unit digit of the cube root of N will be the number whose cube is equal to the unit digit of N^3.
- In our case, we need to find a number whose cube is equal to 8.
- By trial and error, we can find that the cube root of 8 is 2.
Therefore, the unit digit of the cube root of a number that ends with 2 is 2 itself.
In this question, the correct answer is option 'B' - 8, which is incorrect. The correct answer should be option 'A' - 2.
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What will be the unit digit of the cube root of a number ends with 2?a)2b)8c)4d)6Correct answer is option 'B'. Can you explain this answer?
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What will be the unit digit of the cube root of a number ends with 2?a)2b)8c)4d)6Correct answer is option 'B'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about What will be the unit digit of the cube root of a number ends with 2?a)2b)8c)4d)6Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What will be the unit digit of the cube root of a number ends with 2?a)2b)8c)4d)6Correct answer is option 'B'. Can you explain this answer?.
What will be the unit digit of the cube root of a number ends with 2?a)2b)8c)4d)6Correct answer is option 'B'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about What will be the unit digit of the cube root of a number ends with 2?a)2b)8c)4d)6Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What will be the unit digit of the cube root of a number ends with 2?a)2b)8c)4d)6Correct answer is option 'B'. Can you explain this answer?.
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