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Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 859 · 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 5 times another. Their difference is 96. What is the smaller number?
  2. 2.The sum of 3 consecutive numbers is 69. What is the largest of them?
  3. 3.The sum of 5 consecutive numbers is 145. What is the smallest of them?
  4. 4.The sum of 4 consecutive numbers is 74. What is the smallest of them?
  5. 5.The sum of two numbers is 123 and their difference is 11. What is the larger number?
  6. 6.One number is 3 times another. Their difference is 26. What is the smaller number?
  7. 7.The sum of 3 consecutive numbers is 111. What is the smallest of them?
  8. 8.The sum of 3 consecutive even numbers is 72. What is the largest of them?
  9. 9.The sum of 4 consecutive odd numbers is 88. What is the largest of them?
  10. 10.One number is 4 times another. Their difference is 72. What is the smaller number?
  11. 11.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?
  12. 12.One number is 3 times another. Their difference is 6. What is the smaller number?
  13. 13.The sum of 3 consecutive numbers is 75. What is the largest of them?
  14. 14.The sum of 3 consecutive numbers is 114. What is the largest of them?
  15. 15.The sum of 3 consecutive even numbers is 192. What is the smallest of them?
  16. 16.The sum of 3 consecutive numbers is 135. What is the smallest of them?
  17. 17.The sum of 4 consecutive even numbers is 180. What is the smallest of them?
  18. 18.The digits of a two-digit number add up to 13. When the digits swap places, the number goes up by 27. What is the number?
  19. 19.The sum of 3 consecutive odd numbers is 99. What is the largest of them?
  20. 20.The sum of two numbers is 67 and their difference is 43. What is the larger number?
  21. 21.The sum of two numbers is 51 and their difference is 39. What is the smaller number?
  22. 22.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?
  23. 23.The sum of two numbers is 88 and their difference is 38. What is the smaller number?
  24. 24.The sum of 3 consecutive numbers is 48. What is the smallest of them?
  25. 25.The sum of 4 consecutive numbers is 242. What is the smallest of them?
  26. 26.The digits of a two-digit number add up to 8. When the digits swap places, the number goes up by 36. What is the number?
  27. 27.The sum of 4 consecutive numbers is 158. What is the largest of them?
  28. 28.The sum of 4 consecutive odd numbers is 64. What is the smallest of them?
  29. 29.One number is 5 times another. Their difference is 28. What is the smaller number?
  30. 30.The digits of a two-digit number add up to 10. When the digits swap places, the number goes up by 18. What is the number?
  31. 31.The digits of a two-digit number add up to 13. When the digits swap places, the number goes up by 9. What is the number?
  32. 32.One number is 2 times another. Their difference is 24. What is the smaller number?
  33. 33.The sum of 3 consecutive even numbers is 48. What is the smallest of them?
  34. 34.The sum of 5 consecutive numbers is 225. What is the smallest of them?
  35. 35.One number is 3 times another. Their difference is 74. What is the smaller number?
  36. 36.The sum of two numbers is 111 and their difference is 53. What is the smaller number?
  37. 37.One number is 4 times another. Their difference is 36. What is the smaller number?
  38. 38.The sum of 4 consecutive numbers is 222. What is the largest of them?
  39. 39.The sum of two numbers is 95 and their difference is 37. What is the smaller number?
  40. 40.One number is 5 times another. Their difference is 36. What is the smaller number?

Answer key

  1. 24
  2. 24
  3. 27
  4. 17
  5. 67
  6. 13
  7. 36
  8. 26
  9. 25
  10. 24
  11. 89
  12. 3
  13. 26
  14. 39
  15. 62
  16. 44
  17. 42
  18. 58
  19. 35
  20. 55
  21. 6
  22. 12
  23. 25
  24. 15
  25. 59
  26. 26
  27. 41
  28. 13
  29. 7
  30. 46
  31. 67
  32. 24
  33. 14
  34. 43
  35. 37
  36. 29
  37. 12
  38. 57
  39. 29
  40. 9

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