← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 776 · 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 3 consecutive even numbers is 246. What is the smallest of them?
  2. 2.The digits of a two-digit number add up to 9. When the digits swap places, the number goes up by 45. What is the number?
  3. 3.One number is 4 times another. Their difference is 30. What is the smaller number?
  4. 4.The digits of a two-digit number add up to 11. When the digits swap places, the number goes up by 9. What is the number?
  5. 5.The sum of 3 consecutive numbers is 90. What is the smallest of them?
  6. 6.The sum of 5 consecutive numbers is 200. What is the smallest of them?
  7. 7.The sum of 3 consecutive numbers is 60. What is the smallest of them?
  8. 8.One number is 3 times another. Their difference is 6. What is the smaller number?
  9. 9.One number is 2 times another. Their difference is 3. What is the smaller number?
  10. 10.The sum of 5 consecutive numbers is 60. What is the smallest of them?
  11. 11.The digits of a two-digit number add up to 14. When the digits swap places, the number goes up by 36. What is the number?
  12. 12.The sum of two numbers is 84 and their difference is 34. What is the smaller number?
  13. 13.The sum of 5 consecutive numbers is 220. What is the smallest of them?
  14. 14.The sum of two numbers is 40 and their difference is 10. What is the larger number?
  15. 15.One number is 6 times another. Their difference is 55. What is the smaller number?
  16. 16.The sum of 3 consecutive odd numbers is 243. What is the largest of them?
  17. 17.The sum of two numbers is 123 and their difference is 37. What is the larger number?
  18. 18.One number is 6 times another. Their difference is 75. What is the smaller number?
  19. 19.The sum of two numbers is 108 and their difference is 26. What is the smaller number?
  20. 20.The sum of 3 consecutive numbers is 36. What is the largest of them?
  21. 21.One number is 5 times another. Their difference is 124. What is the smaller number?
  22. 22.The sum of 5 consecutive numbers is 75. What is the smallest of them?
  23. 23.The sum of 3 consecutive numbers is 102. What is the largest of them?
  24. 24.The sum of 3 consecutive numbers is 123. What is the largest of them?
  25. 25.The sum of 4 consecutive even numbers is 332. What is the largest of them?
  26. 26.The sum of 3 consecutive odd numbers is 189. What is the largest of them?
  27. 27.The sum of 5 consecutive numbers is 50. What is the largest of them?
  28. 28.The sum of two numbers is 29 and their difference is 27. What is the larger number?
  29. 29.The sum of 3 consecutive odd numbers is 231. What is the largest of them?
  30. 30.The sum of two numbers is 140 and their difference is 50. What is the larger number?
  31. 31.The sum of 5 consecutive numbers is 140. What is the smallest of them?
  32. 32.The sum of two numbers is 14 and their difference is 6. What is the larger number?
  33. 33.The sum of 4 consecutive even numbers is 156. What is the largest of them?
  34. 34.The sum of 4 consecutive numbers is 238. What is the largest of them?
  35. 35.The sum of 4 consecutive even numbers is 44. What is the largest of them?
  36. 36.The sum of 3 consecutive even numbers is 24. What is the smallest of them?
  37. 37.The sum of two numbers is 91 and their difference is 61. What is the smaller number?
  38. 38.The sum of two numbers is 143 and their difference is 17. What is the smaller number?
  39. 39.The sum of 5 consecutive numbers is 175. What is the smallest of them?
  40. 40.The sum of 3 consecutive numbers is 108. What is the smallest of them?

Answer key

  1. 80
  2. 27
  3. 10
  4. 56
  5. 29
  6. 38
  7. 19
  8. 3
  9. 3
  10. 10
  11. 59
  12. 25
  13. 42
  14. 25
  15. 11
  16. 83
  17. 80
  18. 15
  19. 41
  20. 13
  21. 31
  22. 13
  23. 35
  24. 42
  25. 86
  26. 65
  27. 12
  28. 28
  29. 79
  30. 95
  31. 26
  32. 10
  33. 42
  34. 61
  35. 14
  36. 6
  37. 15
  38. 63
  39. 33
  40. 35

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