← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 27 · 40 questions
TalentJR

The method (Use the structure): n consecutive numbers with sum S: the middle (average) is S ÷ n. From sum and difference: larger = (sum + difference) ÷ 2, smaller = (sum − difference) ÷ 2. Swapping the digits changes the number by 9 × (difference of the digits). “k times another, difference D”: smaller = D ÷ (k − 1).

NameDateTime takenScore ___ / 40
  1. 1.One number is 2 times another. Their difference is 23. What is the smaller number?
  2. 2.The digits of a two-digit number add up to 11. When the digits swap places, the number goes up by 45. What is the number?
  3. 3.The sum of 4 consecutive numbers is 66. What is the smallest of them?
  4. 4.The sum of 3 consecutive odd numbers is 75. What is the largest of them?
  5. 5.The sum of 3 consecutive even numbers is 174. What is the largest of them?
  6. 6.The sum of 4 consecutive even numbers is 148. What is the largest of them?
  7. 7.The sum of two numbers is 95 and their difference is 21. What is the smaller number?
  8. 8.The sum of two numbers is 115 and their difference is 19. What is the larger number?
  9. 9.The sum of 4 consecutive odd numbers is 200. What is the smallest of them?
  10. 10.One number is 4 times another. Their difference is 63. What is the smaller number?
  11. 11.One number is 3 times another. Their difference is 80. What is the smaller number?
  12. 12.The sum of two numbers is 57 and their difference is 25. What is the smaller number?
  13. 13.One number is 2 times another. Their difference is 9. What is the smaller number?
  14. 14.The sum of 3 consecutive even numbers is 54. What is the smallest of them?
  15. 15.The digits of a two-digit number add up to 7. When the digits swap places, the number goes up by 45. What is the number?
  16. 16.The sum of two numbers is 38 and their difference is 22. What is the smaller number?
  17. 17.The sum of 3 consecutive odd numbers is 123. What is the largest of them?
  18. 18.The sum of 3 consecutive numbers is 114. What is the smallest of them?
  19. 19.One number is 6 times another. Their difference is 35. What is the smaller number?
  20. 20.The sum of two numbers is 178 and their difference is 6. What is the smaller number?
  21. 21.The sum of 3 consecutive numbers is 33. What is the smallest of them?
  22. 22.The sum of two numbers is 44 and their difference is 38. What is the smaller number?
  23. 23.The sum of 3 consecutive numbers is 156. What is the largest of them?
  24. 24.The digits of a two-digit number add up to 9. When the digits swap places, the number goes up by 27. What is the number?
  25. 25.The sum of two numbers is 97 and their difference is 57. What is the smaller number?
  26. 26.The digits of a two-digit number add up to 3. When the digits swap places, the number goes up by 9. What is the number?
  27. 27.The sum of 4 consecutive numbers is 150. What is the largest of them?
  28. 28.The sum of 3 consecutive odd numbers is 81. What is the smallest of them?
  29. 29.The digits of a two-digit number add up to 12. When the digits swap places, the number goes up by 36. What is the number?
  30. 30.The digits of a two-digit number add up to 8. When the digits swap places, the number goes up by 54. What is the number?
  31. 31.The sum of 3 consecutive even numbers is 132. What is the largest of them?
  32. 32.The sum of two numbers is 62 and their difference is 6. What is the smaller number?
  33. 33.One number is 3 times another. Their difference is 78. What is the smaller number?
  34. 34.The sum of 4 consecutive odd numbers is 88. What is the largest of them?
  35. 35.The sum of two numbers is 73 and their difference is 57. What is the smaller number?
  36. 36.The digits of a two-digit number add up to 9. When the digits swap places, the number goes up by 63. What is the number?
  37. 37.The sum of 3 consecutive numbers is 72. What is the largest of them?
  38. 38.The sum of 3 consecutive numbers is 108. What is the smallest of them?
  39. 39.The sum of two numbers is 28 and their difference is 20. What is the larger number?
  40. 40.The sum of 4 consecutive numbers is 90. What is the smallest of them?

Answer key

  1. 23
  2. 38
  3. 15
  4. 27
  5. 60
  6. 40
  7. 37
  8. 67
  9. 47
  10. 21
  11. 40
  12. 16
  13. 9
  14. 16
  15. 16
  16. 8
  17. 43
  18. 37
  19. 7
  20. 86
  21. 10
  22. 3
  23. 53
  24. 36
  25. 20
  26. 12
  27. 39
  28. 25
  29. 48
  30. 17
  31. 46
  32. 28
  33. 39
  34. 25
  35. 8
  36. 18
  37. 25
  38. 35
  39. 24
  40. 21

Free quantitative aptitude lessons, practice and worksheets at talentjr.in/quantitative-aptitude