# Quantitative Aptitude :: Number System Problems And Answers

Number System Formulaes

 Quantitative Aptitude Reasoning Programming Verbal Ability

21. Sum of the two number is 14 and difference of their square is 28. Find the numbers.

 A. 8 and 6 B. 9 and 5 C. 4 and 10 D. 3 and 10

22. When a number divided by 288, the remainder is 47. Find the remainder when the same number is divided by 24.

 A. 24 B. 21 C. 23 D. 25

23. A boy was asked to find 7/9 of a number. But he divided the number by 7/9, Thus he got 32 more than the correct answer. Find the number.

 A. 61 B. 63 C. 62 D. 54

24. Find the differece between largest and smallest number formerd by the digits 0,1,2,3,5

 A. 41375 B. 42975 C. 42775 D. 43565

25. Find the L.C.M of 12, 25, 24 and 20.

 A. 240 B. 600 C. 320 D. 150

26. Find the H.C.F of 300, 450, 525.

 A. 125 B. 50 C. 75 D. 25

27. L.C.M of two numbers is 192 and there H.C.F is 16. If one of them is 48. Find the other

 A. 32 B. 64 C. 48 D. 68

28. Two numbers are in the ratio 5:8 and thier H.C.F is 4. Find the numbers.

 A. 25 and 40 B. 20 and 32 C. 30 and 48 D. 15 and 24

29. Find the greatest number which will divides 200 and 320 exactly

 A. 20 B. 40 C. 50 D. 8

30. Find the greatest number that will divide 1657, and 2037 to leaves the remainder 6 and 5 respectively

 A. 121 B. 123 C. 129 D. 127

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