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Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 76 · 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.The sum of 4 consecutive odd numbers is 160. What is the smallest of them?
  2. 2.The digits of a two-digit number add up to 15. When the digits swap places, the number goes up by 27. What is the number?
  3. 3.The sum of two numbers is 124 and their difference is 74. What is the larger number?
  4. 4.The sum of 3 consecutive numbers is 177. What is the smallest of them?
  5. 5.The sum of two numbers is 87 and their difference is 69. What is the smaller number?
  6. 6.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?
  7. 7.The sum of 5 consecutive numbers is 295. What is the largest of them?
  8. 8.The sum of 4 consecutive odd numbers is 176. What is the smallest of them?
  9. 9.The sum of 3 consecutive numbers is 156. What is the largest of them?
  10. 10.The sum of 3 consecutive numbers is 105. What is the largest of them?
  11. 11.One number is 2 times another. Their difference is 5. What is the smaller number?
  12. 12.The sum of 3 consecutive numbers is 165. What is the smallest of them?
  13. 13.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?
  14. 14.The digits of a two-digit number add up to 17. When the digits swap places, the number goes up by 9. What is the number?
  15. 15.The sum of 4 consecutive numbers is 166. What is the smallest of them?
  16. 16.The sum of two numbers is 98 and their difference is 46. What is the smaller number?
  17. 17.The sum of 5 consecutive numbers is 310. What is the smallest of them?
  18. 18.The sum of two numbers is 42 and their difference is 6. What is the larger number?
  19. 19.The sum of 3 consecutive even numbers is 132. What is the smallest of them?
  20. 20.The sum of two numbers is 68 and their difference is 24. What is the smaller number?
  21. 21.The sum of 4 consecutive numbers is 206. What is the largest of them?
  22. 22.The sum of two numbers is 73 and their difference is 41. What is the larger number?
  23. 23.The digits of a two-digit number add up to 5. When the digits swap places, the number goes up by 27. What is the number?
  24. 24.The digits of a two-digit number add up to 16. When the digits swap places, the number goes up by 18. What is the number?
  25. 25.The sum of 4 consecutive numbers is 234. What is the smallest of them?
  26. 26.The sum of 4 consecutive even numbers is 276. What is the largest of them?
  27. 27.One number is 6 times another. Their difference is 150. What is the smaller number?
  28. 28.The sum of 4 consecutive numbers is 54. What is the smallest of them?
  29. 29.The sum of 3 consecutive odd numbers is 99. What is the smallest of them?
  30. 30.The sum of 5 consecutive numbers is 215. What is the smallest of them?
  31. 31.The sum of 3 consecutive numbers is 177. What is the largest of them?
  32. 32.The sum of 5 consecutive numbers is 50. What is the smallest of them?
  33. 33.One number is 4 times another. Their difference is 99. What is the smaller number?
  34. 34.The sum of two numbers is 54 and their difference is 36. What is the larger number?
  35. 35.One number is 4 times another. Their difference is 39. What is the smaller number?
  36. 36.One number is 5 times another. Their difference is 32. What is the smaller number?
  37. 37.The sum of 5 consecutive numbers is 155. What is the smallest of them?
  38. 38.One number is 2 times another. Their difference is 12. What is the smaller number?
  39. 39.The sum of 4 consecutive numbers is 242. What is the smallest of them?
  40. 40.One number is 2 times another. Their difference is 35. What is the smaller number?

Answer key

  1. 37
  2. 69
  3. 99
  4. 58
  5. 9
  6. 17
  7. 61
  8. 41
  9. 53
  10. 36
  11. 5
  12. 54
  13. 48
  14. 89
  15. 40
  16. 26
  17. 60
  18. 24
  19. 42
  20. 22
  21. 53
  22. 57
  23. 14
  24. 79
  25. 57
  26. 72
  27. 30
  28. 12
  29. 31
  30. 41
  31. 60
  32. 8
  33. 33
  34. 45
  35. 13
  36. 8
  37. 29
  38. 12
  39. 59
  40. 35

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