TRAINING & PLACEMENT CELL

QUANTITATIVE APTITUDE
NUMBER SYSTEM
1. Which of the following is a prime number?
a. 161 b. 221 c. 373 d. 437
2. Which of the following is a prime number?
a. 247 b. 319 c. 437 d. 811
3. Find the sum of first 20 odd numbers?
a. 200 b. 250 c. 400 d. 300
4. Find the sum of first 30 even numbers?
a. 720 b. 850 c. 930 d. 1040
5. Find the sum of all natural numbers multiple of 3 between 250 & 1000?
a. 671535 b. 167535 c. 135675 d. 156375
6. Find the sum of all natural numbers multiple of 4 from 400 to 800?
a. 60600 b. 71250 c. 62100 d. 57900
7. A number when divided by three successive numbers 9, 11, 13 leaves the remainders 8, 9 and 8 respectively. If
the order of divisors is reversed, the remainders will be?
a. 10, 8, 9 b. 10, 1, 6 c. 8, 9, 8 d. 9, 8, 8
8. After the division of a number successively by 3, 4 and 7, the remainders obtained are 2, 1 and 4 respectively.
What will be the remainder if 84 divide the same number?
a. 41 b. 33 c. 53 d. 80
9. A number is successively divided by 8, 7 and 3 giving residues 3, 4 and 2 respectively and quotient 31. The
number is?
a. 3555 b. 5355 c. 5535 d. 5553
10. Find the unit digit (327)922
a. 1 b. 3 c. 6 d. 9
11. Find the unit digit (372)928
a. 1 b. 3 c. 6 d. 5
789×789×789+211×211×211
12. Simplify:
789×789−789×211+211×211
a. 900 b. 1000 c. 1100 d. 800
658×658×658−328×328×328
13. Simplify: 658×658+658×328+328×328
a. 210 b. 300 c. 320 d. 330
14. Simplify: (893+786)2-(893-786)2
893×786
a. 4 b. 6 c. 2 d. 3
2 2
15. Simplify: (963+476) + (963-476)
(963×963+476×476)
a. 2 b. 4 c. 497 d. 1449
16. What least value must be assigned to * so that the number 197*5462 is divisible by 9?
a. 1 b. 2 c. 3 d. 7
17. Which one of the following numbers is divisible by 11?
a. 4823718 b. 8423718 c. 8432718 d. 3729495
2
18. If the number 5258n744 is divisible by 24, what can the value of n be?
a. 1 b. 2 c. 4 d. 9
2
19. A number 452p36 is such that it is divisible by 36. What can the value of p be?
a. 16 b. 25 c. 36 d. 49
20. What is the number of zeros at the end of the product of the numbers from 1 to 3000?
a. 746 b. 748 c. 749 d. 750
21. The number of zeros at the end of 60!?
a. 12 b. 14 c. 16 d. 18
22. Smallest number to be added to 1000 so that 45 divide the sum exactly?
a. 10 b. 15 c. 25 d. 35
23. What least number must be subtracted from 2000 to get a number exactly divisible by 17?
a. 6 b. 11 c. 13 d. 7
24. Find the number which is nearest to 3105 and is exactly divisible by 21?
a. 3087 b. 3102 c. 3108 d. 3123
25. The smallest number of five digits exactly divisible by 476 is?
a. 10004 b. 10472 c. 10470 d. 10061
26. Find the greatest number of five digits which is exactly divisible by 47 is?
a. 99960 b. 99983 c. 99969 d. 99989
11 5 2
27. Find the total number of prime factors in the expression (4) x (7) x (11)
a. 31 b. 30 c. 29 d. 28
28. Find the total number of prime factors in the expression (6)11 x (7)5 x (22)2
a. 31 b. 30 c. 29 d. 28
29. On dividing 15968 by a certain number, the quotient is 89 and the remainder is 37. Find the divisor?
a. 179 b. 169 c. 189 d. 199
30. In a division sum, the divisor is 10 times the quotient and 5 times the remainder. If the remainder is 46, what is
the dividend?
a. 5355 b. 5333 c. 5255 d. 5336
31. The divisor is 25 times the quotient and 5 times the remainder. If the quotient is 16, then the dividend is?
a. 400 b. 480 c. 6400 d. 6480
32. If three times the larger of the two numbers is divided by the smaller one, we get 4 as quotient and 3 as the
remainder. Also, if seven times the smaller number is divided by the larger one, we get 5 as quotient and 1 as the
remainder. Find the smaller number?
a. 25 b. 20 c. 18 d. 13
33. There are four prime numbers written in ascending order. The product of the first three is 385 and that of the last
three is 1001. Find the largest prime number?
a. 9 b. 11 c. 13 d. 17
34. There are four prime numbers written in ascending order. The product of the first three is 4199 and that of the last
three is 7429. Find the second largest prime number?
a. 11 b. 13 c. 17 d. 19
35. A 3-digit number 4a3 is added to another 3-digit number 984 to give the four-digit number 13b7 which is
divisible by 11 Then (a + b) is?
a. 10 b. 11 c. 12 d. 15
36. The difference between a two digit numbers that’s obtained by interchanging the position of its digits is 36. What
is the difference between the two digits of that number?
a. 9 b. 8 c. 4 d. CND
37. If 27 added in the age of 'A' the age of B obtained, which is obtained by interchanging the digits of the age of A.
Sum of the digits of the age of A is 5. Find the age of A?
a. 41 b. 14 c. 15 d. CND
38. In a two digit positive number, the digit in the units place is equal to the square of the digit in tens place, and the
difference between the number and the number obtained by interchanging the digits is 54. What is 40% of the
original number?
a. 16.8 b. 37.2 c. 15.6 d. 9.6
39. The addition between a two-digit number and the number obtained by interchanging the two digits is 110. If the
number of the unit of the original number is less than 4 by the number of tens place digit, find the original
number?
a. 84 b. 73 c. 62 d. 37
40. A number when divided by 899 gives a remainder 63. What remainder will be obtained by dividing the same
number by 29?
a. 2 b. 3 c. 5 d. CND
41. A number when divided by 618 gives a remainder 191. What remainder will be obtained by dividing the same
number by 47?
a. 3 b. 8 c. 10 d. CND
42. How many factors does the number 48 have?
a. 10 b. 7 c. 9 d. 12
43. How many factors does the number 2876 have?
a. 5 b. 6 c. 7 d. 8
44. The sum of 7 consecutive natural numbers is 1617. Find how many of these are prime numbers?
a. 1 b. 2 c. 3 d. 4
45. In the five numbers, the mean and median of the numbers is 7000. Each number was in full thousands. Only mode
among the special numbers is the value 12000. Difference between the highest and lowest value of the numbers?
a. 4000 b. 5000 c. 9000 d. 11000
Answer key:
1.C 2.D 3.C 4.C 5.D 6.A 7.B 8.C 9.B 10.D 11.C 12.B
13.D 14.A 15.A 16.B 17.D 18.A 19.D 20.B 21.B 22.D 23.B 24.C
25.B 26.C 27.C 28.A 29.A 30.D 31.D 32.C 33.C 34.D 35.A 36.C
37.B 38.C 39.B 40.C 41.D 42.A 43.B 44.B 45.D