← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 224 · 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 even numbers is 132. What is the smallest of them?
  2. 2.One number is 2 times another. Their difference is 9. What is the smaller number?
  3. 3.The sum of two numbers is 74 and their difference is 6. What is the smaller number?
  4. 4.The sum of 3 consecutive numbers is 30. What is the smallest of them?
  5. 5.The sum of two numbers is 103 and their difference is 41. What is the larger number?
  6. 6.The sum of 3 consecutive numbers is 111. What is the smallest of them?
  7. 7.The sum of two numbers is 37 and their difference is 33. What is the smaller number?
  8. 8.One number is 4 times another. Their difference is 36. What is the smaller number?
  9. 9.The sum of 3 consecutive numbers is 54. What is the largest of them?
  10. 10.The sum of 5 consecutive numbers is 300. What is the smallest of them?
  11. 11.The sum of 5 consecutive numbers is 130. What is the largest of them?
  12. 12.One number is 5 times another. Their difference is 16. What is the smaller number?
  13. 13.The sum of 4 consecutive numbers is 138. What is the largest of them?
  14. 14.The sum of 4 consecutive even numbers is 100. What is the largest of them?
  15. 15.The sum of two numbers is 101 and their difference is 75. What is the larger number?
  16. 16.One number is 4 times another. Their difference is 12. What is the smaller number?
  17. 17.The sum of 3 consecutive odd numbers is 171. What is the largest of them?
  18. 18.One number is 4 times another. Their difference is 45. What is the smaller number?
  19. 19.The sum of 4 consecutive numbers is 186. What is the smallest of them?
  20. 20.The sum of 5 consecutive numbers is 250. What is the largest of them?
  21. 21.The sum of two numbers is 46 and their difference is 40. What is the smaller number?
  22. 22.The sum of 4 consecutive odd numbers is 216. What is the largest of them?
  23. 23.The sum of 4 consecutive numbers is 42. What is the smallest of them?
  24. 24.The digits of a two-digit number add up to 12. When the digits swap places, the number goes up by 18. What is the number?
  25. 25.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?
  26. 26.The sum of 3 consecutive odd numbers is 177. What is the largest of them?
  27. 27.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?
  28. 28.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?
  29. 29.The sum of two numbers is 76 and their difference is 60. What is the smaller number?
  30. 30.The sum of 3 consecutive numbers is 144. What is the largest of them?
  31. 31.The sum of 5 consecutive numbers is 170. What is the smallest of them?
  32. 32.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?
  33. 33.The sum of 3 consecutive even numbers is 144. What is the largest of them?
  34. 34.The sum of two numbers is 86 and their difference is 64. What is the smaller number?
  35. 35.One number is 5 times another. Their difference is 156. What is the smaller number?
  36. 36.The sum of 3 consecutive numbers is 30. What is the largest of them?
  37. 37.The sum of two numbers is 18 and their difference is 6. What is the larger number?
  38. 38.The sum of 4 consecutive odd numbers is 152. What is the smallest of them?
  39. 39.The sum of 3 consecutive numbers is 141. What is the smallest of them?
  40. 40.The sum of 5 consecutive numbers is 80. What is the smallest of them?

Answer key

  1. 30
  2. 9
  3. 34
  4. 9
  5. 72
  6. 36
  7. 2
  8. 12
  9. 19
  10. 58
  11. 28
  12. 4
  13. 36
  14. 28
  15. 88
  16. 4
  17. 59
  18. 15
  19. 45
  20. 52
  21. 3
  22. 57
  23. 9
  24. 57
  25. 79
  26. 61
  27. 46
  28. 89
  29. 8
  30. 49
  31. 32
  32. 48
  33. 50
  34. 11
  35. 39
  36. 11
  37. 12
  38. 35
  39. 46
  40. 14

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