Aptitude  Number series  Practice Q&A

1. The difference between a positive proper fraction and its reciprocal is 9/20. The fraction is:

$ \dfrac{3}{5} $ $ \dfrac{3}{10} $ $ \dfrac{4}{5} $ $ \dfrac{4}{3} $

2. On dividing a number by 56, we get 29 as remainder. On dividing the same number by 8, what will be the remainder ?

4 5 6 7

3. If $n$ is a natural number, then 6n2 + 6n is always divisible by:

6 only 6 and 12 both 12 only by 18 only

4. 107 x 107 + 93 x 93 = ?

19578 19418 20098 21908

5. What will be remainder when (6767 + 67) is divided by 68 ?

1 63 66 67

6. On dividing a number by 5, we get 3 as remainder. What will the remainder when the square of the this number is divided by 5 ?

0 1 2 4

7. How many 3-digit numbers are completely divisible 6 ?

149 150 151 166

8. How many natural numbers are there between 23 and 100 which are exactly divisible by 6 ?

8 11 12 13

9. How many of the following numbers are divisible by 3 but not by 9 ?
2133, 2343, 3474, 4131, 5286, 5340, 6336, 7347, 8115, 9276

5 6 7 None of these

10. $\dfrac{(963 + 476)^2 + (963 - 476)^2}{(963 \times 963 + 476 \times 476)}$=?

1449 497 2 4

 

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