Numbers-Data Intensity 1 Multiple Questions and Answers.
Exercise Questions ::
Numbers
41. | (xn - an) is completely divisible by (x - a), when? |
| |
| A. | n is any natural number |
| B. | n is an even natural number |
| C. | n is and odd natural number |
| D. | n is prime |
|
|
| Answer: Option A |
|
|
| Explanation: |
|
For every natural number n, (xn - an) is completely divisible by (x - a). |
| See More Information |
|
|
|
Tutorial Link: |
Published by:Michael Daani
| Answer: Option C |
|
|
| Explanation: |
|
45 = 5 x 9, where 5 and 9 are co-primes.
Unit digit must be 0 or 5 and sum of digits must be divisible by 9.
Among given numbers, such number is 202860. |
| See More Information |
|
|
|
Tutorial Link: |
Published by:Michael Daani
«