← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 610 · 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 48. What is the largest of them?
  2. 2.The sum of two numbers is 90 and their difference is 80. What is the smaller number?
  3. 3.One number is 5 times another. Their difference is 52. What is the smaller number?
  4. 4.The sum of 4 consecutive even numbers is 236. What is the largest of them?
  5. 5.The sum of 4 consecutive numbers is 34. What is the largest of them?
  6. 6.The sum of 3 consecutive odd numbers is 123. What is the largest of them?
  7. 7.The sum of 3 consecutive even numbers is 114. What is the largest of them?
  8. 8.The sum of 3 consecutive numbers is 138. What is the largest of them?
  9. 9.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?
  10. 10.The sum of 3 consecutive numbers is 153. What is the smallest of them?
  11. 11.The sum of two numbers is 69 and their difference is 59. What is the larger number?
  12. 12.The sum of two numbers is 117 and their difference is 37. What is the larger number?
  13. 13.The digits of a two-digit number add up to 9. When the digits swap places, the number goes up by 63. What is the number?
  14. 14.The sum of two numbers is 112 and their difference is 10. What is the smaller number?
  15. 15.The digits of a two-digit number add up to 8. When the digits swap places, the number goes up by 18. What is the number?
  16. 16.The sum of 3 consecutive numbers is 72. What is the largest of them?
  17. 17.One number is 3 times another. Their difference is 36. What is the smaller number?
  18. 18.The sum of two numbers is 13 and their difference is 11. What is the smaller number?
  19. 19.The sum of two numbers is 27 and their difference is 11. What is the smaller number?
  20. 20.The sum of 4 consecutive odd numbers is 176. What is the largest of them?
  21. 21.One number is 2 times another. Their difference is 13. What is the smaller number?
  22. 22.The sum of 3 consecutive numbers is 129. What is the smallest of them?
  23. 23.The sum of 3 consecutive even numbers is 210. What is the largest of them?
  24. 24.One number is 5 times another. Their difference is 64. What is the smaller number?
  25. 25.The digits of a two-digit number add up to 15. When the digits swap places, the number goes up by 9. What is the number?
  26. 26.The sum of 3 consecutive numbers is 81. What is the smallest of them?
  27. 27.The sum of 4 consecutive even numbers is 180. What is the largest of them?
  28. 28.One number is 4 times another. Their difference is 21. What is the smaller number?
  29. 29.The sum of two numbers is 67 and their difference is 41. What is the smaller number?
  30. 30.The sum of two numbers is 49 and their difference is 13. What is the larger number?
  31. 31.The sum of 3 consecutive even numbers is 48. What is the smallest of them?
  32. 32.The sum of 4 consecutive numbers is 226. What is the largest of them?
  33. 33.The sum of 4 consecutive numbers is 26. What is the largest of them?
  34. 34.The sum of 4 consecutive odd numbers is 312. What is the smallest of them?
  35. 35.The sum of 4 consecutive numbers is 206. What is the smallest of them?
  36. 36.The sum of two numbers is 44 and their difference is 8. What is the larger number?
  37. 37.The sum of 4 consecutive numbers is 78. What is the smallest of them?
  38. 38.One number is 4 times another. Their difference is 72. What is the smaller number?
  39. 39.The sum of 3 consecutive even numbers is 90. What is the smallest of them?
  40. 40.The sum of 4 consecutive odd numbers is 56. What is the largest of them?

Answer key

  1. 15
  2. 5
  3. 13
  4. 62
  5. 10
  6. 43
  7. 40
  8. 47
  9. 89
  10. 50
  11. 64
  12. 77
  13. 18
  14. 51
  15. 35
  16. 25
  17. 18
  18. 1
  19. 8
  20. 47
  21. 13
  22. 42
  23. 72
  24. 16
  25. 78
  26. 26
  27. 48
  28. 7
  29. 13
  30. 31
  31. 14
  32. 58
  33. 8
  34. 75
  35. 50
  36. 26
  37. 18
  38. 24
  39. 28
  40. 17

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