# Practice Questions on Number SystemAptitude Questions and Answers

## Moderate Number System Question - 21

 Q21. What is the correct arrangement of the fractions $\dfrac{5}{8}, \dfrac{7}{12}, \dfrac{13}{16}, \dfrac{16}{29}$ and $\dfrac{3}{4}$ in ascending order of magnitude.
 A. $\dfrac{16}{29} < \dfrac{7}{12} < \dfrac{5}{8} < \dfrac{3}{4} < \dfrac{13}{16}$ B. $\dfrac{16}{29} < \dfrac{7}{12} < \dfrac{5}{8} < \dfrac{13}{16} < \dfrac{3}{4}$ C. $\dfrac{7}{12} < \dfrac{16}{29} < \dfrac{5}{8} < \dfrac{13}{16}< \dfrac{3}{4}$ D. $\dfrac{16}{29} < \dfrac{5}{8} < \dfrac{7}{12} < \dfrac{3}{4} < \dfrac{13}{16}$

## Moderate Number System Question - 22

 Q22. If $a$ and $b$ are positive integers, and $x = 2×3×7×a$ , and $y = 2×2×8×b$ , and the values of both $x$ and $y$ lie between 120 and 130 (not including the two), then $a – b =$
 A. -2 B. -1 C. 1 D. 2

## Moderate Number System Question - 23

 Q23. A number when divided by 342 gives a remainder 47. When the same number is divided by 19, what would be the remainder?
 A. 5 B. 9 C. 4 D. 0

## Moderate Number System Question - 24

 Q24. A bank issued credit card numbers and the corresponding PIN (Personal Identification Number). Both are 3-digit numbers up to 996. Pinaki was the last to get the credit card and so he had the last possible credit card number. He was afraid of forgetting his PIN. He wrote down the number 123 in his diary to remember his PIN. He also wrote out the way to calculate 123 : "Multiply the card number by PIN. Divide the product by 997. The remainder is 123". Once, Prafull saw his diary in which Pinaki wrote this number 123. Prafull did a lot of purchasing, as he now knows Pinaki's PIN. What is Pinaki's PIN?
 A. 874 B. 875 C. 876 D. 877

## Moderate Number System Question - 25

 Q25. The least common multiple of two natural numbers $a$ and $b$, is 399. What is the minimum possible sum of the digits of the number a(given $a > b$)?
 A. 1 B. 3 C. 5 D. 7
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