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Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 958 · 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 5 consecutive numbers is 130. What is the smallest of them?
  2. 2.The sum of two numbers is 71 and their difference is 61. What is the smaller number?
  3. 3.The sum of 3 consecutive odd numbers is 243. What is the largest of them?
  4. 4.The sum of 3 consecutive even numbers is 24. What is the largest of them?
  5. 5.One number is 2 times another. Their difference is 19. What is the smaller number?
  6. 6.The sum of 4 consecutive numbers is 78. What is the largest of them?
  7. 7.One number is 5 times another. Their difference is 20. What is the smaller number?
  8. 8.One number is 5 times another. Their difference is 132. What is the smaller number?
  9. 9.The sum of two numbers is 48 and their difference is 10. What is the smaller number?
  10. 10.The sum of two numbers is 75 and their difference is 21. What is the smaller number?
  11. 11.The sum of 4 consecutive odd numbers is 96. What is the largest of them?
  12. 12.The sum of 4 consecutive even numbers is 300. What is the largest of them?
  13. 13.The sum of two numbers is 40 and their difference is 32. What is the larger number?
  14. 14.The sum of 3 consecutive odd numbers is 69. What is the largest of them?
  15. 15.One number is 6 times another. Their difference is 165. What is the smaller number?
  16. 16.The digits of a two-digit number add up to 6. When the digits swap places, the number goes up by 18. What is the number?
  17. 17.The sum of two numbers is 28 and their difference is 2. What is the smaller number?
  18. 18.One number is 5 times another. Their difference is 60. What is the smaller number?
  19. 19.The sum of 4 consecutive even numbers is 316. What is the largest of them?
  20. 20.The digits of a two-digit number add up to 9. When the digits swap places, the number goes up by 9. What is the number?
  21. 21.The sum of two numbers is 68 and their difference is 34. What is the smaller number?
  22. 22.One number is 5 times another. Their difference is 156. What is the smaller number?
  23. 23.The sum of 3 consecutive numbers is 21. What is the largest of them?
  24. 24.The sum of two numbers is 14 and their difference is 12. What is the smaller number?
  25. 25.The sum of 4 consecutive even numbers is 292. What is the largest of them?
  26. 26.The sum of 3 consecutive odd numbers is 171. What is the largest of them?
  27. 27.The sum of 4 consecutive numbers is 178. What is the largest of them?
  28. 28.The sum of 4 consecutive odd numbers is 328. What is the smallest of them?
  29. 29.The sum of two numbers is 111 and their difference is 67. What is the smaller number?
  30. 30.The sum of two numbers is 95 and their difference is 5. What is the larger number?
  31. 31.The sum of two numbers is 66 and their difference is 28. What is the larger number?
  32. 32.One number is 2 times another. Their difference is 33. What is the smaller number?
  33. 33.The sum of 3 consecutive even numbers is 84. What is the smallest of them?
  34. 34.The sum of two numbers is 131 and their difference is 67. What is the smaller number?
  35. 35.The sum of two numbers is 131 and their difference is 25. What is the larger number?
  36. 36.The sum of two numbers is 32 and their difference is 6. What is the smaller number?
  37. 37.The sum of 4 consecutive numbers is 234. What is the largest of them?
  38. 38.The sum of two numbers is 133 and their difference is 51. What is the larger number?
  39. 39.The sum of two numbers is 54 and their difference is 22. What is the smaller number?
  40. 40.The sum of 5 consecutive numbers is 90. What is the smallest of them?

Answer key

  1. 24
  2. 5
  3. 83
  4. 10
  5. 19
  6. 21
  7. 5
  8. 33
  9. 19
  10. 27
  11. 27
  12. 78
  13. 36
  14. 25
  15. 33
  16. 24
  17. 13
  18. 15
  19. 82
  20. 45
  21. 17
  22. 39
  23. 8
  24. 1
  25. 76
  26. 59
  27. 46
  28. 79
  29. 22
  30. 50
  31. 47
  32. 33
  33. 26
  34. 32
  35. 78
  36. 13
  37. 60
  38. 92
  39. 16
  40. 16

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