Problems On Numbers Questions MCQs


problems on numbers Questions

Total Questions : 111

Page 1 of 6 pages
Question 1. If one-third of one-fourth of a number is 15, then three-tenth of that number is:
  1.    35
  2.    36
  3.    45
  4.    54
  5.    None of these
Answer: Option D
Question 2. Three times the first of three consecutive odd integers is 3 more than twice the third. The third integer is:
  1.    9
  2.    11
  3.    13
  4.    15
  5.    None of these
Answer: Option D
Question 3. The difference between a two-digit number and the number obtained by interchanging the positions of its digits is 36. What is the difference between the two digits of that number?
  1.    3
  2.    4
  3.    9
  4.    Cannot be determined
  5.    None of these
Answer: Option B
Question 4. The difference between a two-digit number and the number obtained by interchanging the digits is 36. What is the difference between the sum and the difference of the digits of the number if the ratio between the digits of the number is 1 : 2 ?
  1.    4
  2.    8
  3.    16
  4.    None of these
Answer: Option B
Question 5. A two-digit number is such that the product of the digits is 8. When 18 is added to the number, then the digits are reversed. The number is:
  1.    18
  2.    24
  3.    42
  4.    81
Answer: Option B
Question 6. The sum of the digits of a two-digit number is 15 and the difference between the digits is 3. What is the two-digit number?
  1.    69
  2.    78
  3.    96
  4.    Cannot be determined
  5.    None of these
Answer: Option D
Question 7. A number consists of two digits. If the digits interchange places and the new number is added to the original number, then the resulting number will be divisible by:
  1.    3
  2.    5
  3.    9
  4.    11
Answer: Option D
Question 8. The sum of the squares of three numbers is 138, while the sum of their products taken two at a time is 131. Their sum is:
  1.    20
  2.    30
  3.    40
  4.    None of these
Answer: Option A
Question 9. Find a positive number which when increased by 17 is equal to 60 times the reciprocal of the number.
  1.    3
  2.    10
  3.    17
  4.    20
Answer: Option A
Question 10. In a two-digit, if it is known that its unit's digit exceeds its ten's digit by 2 and that the product of the given number and the sum of its digits is equal to 144, then the number is:
  1.    24
  2.    26
  3.    42
  4.    46
Answer: Option A
Question 11. The product of two numbers is 9375 and the quotient, when the larger one is divided by the smaller, is 15. The sum of the numbers is:
  1.    380
  2.    395
  3.    400
  4.    425
Answer: Option C
Question 12. The product of two numbers is 120 and the sum of their squares is 289. The sum of the number is:
  1.    20
  2.    23
  3.    169
  4.    None of these
Answer: Option B
Question 13. A number consists of 3 digits whose sum is 10. The middle digit is equal to the sum of the other two and the number will be increased by 99 if its digits are reversed. The number is:
  1.    145
  2.    253
  3.    370
  4.    352
Answer: Option B
Question 14. The sum of two number is 25 and their difference is 13. Find their product.
  1.    104
  2.    114
  3.    315
  4.    325
Answer: Option B
Question 15. What is the sum of two consecutive even numbers, the difference of whose squares is 84?
  1.    34
  2.    38
  3.    42
  4.    46
Answer: Option C
Question 16. The sum of twice a number and three times of 42 is 238. What is the sum of thrice the number and two times of 42 ?
  1.    245
  2.    250
  3.    252
  4.    264
  5.    None of these
Answer: Option C
Question 17. Thrice the square of a natural number decreased by 4 times the number is equal to 50 more than the number. The number is :
  1.    4
  2.    5
  3.    6
  4.    10
Answer: Option B
Question 18. By how much is $$\frac{3}{4}$$th of 568 lesser than $$\frac{7}{8}$$th of 1008 ?
  1.    444
  2.    448
  3.    452
  4.    456
  5.    None of these
Answer: Option D
Question 19. The product of three consecutive even numbers when divided by 8 is 720. The product of their square roots is :
  1.    $$12\sqrt {10} $$
  2.    $$24\sqrt {10} $$
  3.    120
  4.    None of these
Answer: Option B
Question 20. What is the greater of the two numbers whose product is 1092 and the sum of the two numbers exceeds their difference by 42 ?
  1.    44
  2.    48
  3.    52
  4.    54
  5.    None of these
Answer: Option C