← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 227 · 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 numbers is 156. What is the largest of them?
  2. 2.The sum of two numbers is 165 and their difference is 29. What is the larger number?
  3. 3.The sum of 3 consecutive numbers is 132. What is the largest of them?
  4. 4.The sum of two numbers is 184 and their difference is 10. What is the larger number?
  5. 5.The sum of 4 consecutive numbers is 46. What is the largest of them?
  6. 6.The digits of a two-digit number add up to 15. When the digits swap places, the number goes up by 27. What is the number?
  7. 7.The sum of two numbers is 43 and their difference is 13. What is the larger number?
  8. 8.The sum of two numbers is 74 and their difference is 60. What is the smaller number?
  9. 9.One number is 5 times another. Their difference is 24. What is the smaller number?
  10. 10.The sum of 4 consecutive odd numbers is 216. What is the smallest of them?
  11. 11.One number is 5 times another. Their difference is 72. What is the smaller number?
  12. 12.The sum of two numbers is 81 and their difference is 61. What is the larger number?
  13. 13.One number is 5 times another. Their difference is 76. What is the smaller number?
  14. 14.The sum of 4 consecutive numbers is 86. What is the largest of them?
  15. 15.The sum of 4 consecutive numbers is 42. What is the smallest of them?
  16. 16.The sum of two numbers is 74 and their difference is 2. What is the larger number?
  17. 17.One number is 3 times another. Their difference is 80. What is the smaller number?
  18. 18.The sum of 4 consecutive even numbers is 172. What is the smallest of them?
  19. 19.One number is 3 times another. Their difference is 14. What is the smaller number?
  20. 20.The sum of 4 consecutive even numbers is 292. What is the smallest of them?
  21. 21.The sum of 4 consecutive numbers is 118. What is the smallest of them?
  22. 22.One number is 2 times another. Their difference is 32. What is the smaller number?
  23. 23.The sum of 3 consecutive even numbers is 192. What is the largest of them?
  24. 24.The sum of two numbers is 83 and their difference is 61. What is the smaller number?
  25. 25.The sum of 3 consecutive numbers is 108. What is the smallest of them?
  26. 26.The sum of 3 consecutive even numbers is 60. What is the smallest of them?
  27. 27.One number is 4 times another. Their difference is 39. What is the smaller number?
  28. 28.One number is 2 times another. Their difference is 13. What is the smaller number?
  29. 29.The sum of 5 consecutive numbers is 135. What is the smallest of them?
  30. 30.One number is 4 times another. Their difference is 96. What is the smaller number?
  31. 31.The sum of 3 consecutive odd numbers is 171. What is the smallest of them?
  32. 32.The sum of 3 consecutive odd numbers is 129. What is the smallest of them?
  33. 33.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?
  34. 34.One number is 3 times another. Their difference is 8. What is the smaller number?
  35. 35.The sum of 3 consecutive even numbers is 96. What is the smallest of them?
  36. 36.The digits of a two-digit number add up to 5. When the digits swap places, the number goes up by 9. What is the number?
  37. 37.The sum of 3 consecutive numbers is 105. What is the smallest of them?
  38. 38.The sum of 3 consecutive numbers is 162. What is the smallest of them?
  39. 39.The sum of 3 consecutive even numbers is 114. What is the largest of them?
  40. 40.The digits of a two-digit number add up to 7. When the digits swap places, the number goes up by 9. What is the number?

Answer key

  1. 53
  2. 97
  3. 45
  4. 97
  5. 13
  6. 69
  7. 28
  8. 7
  9. 6
  10. 51
  11. 18
  12. 71
  13. 19
  14. 23
  15. 9
  16. 38
  17. 40
  18. 40
  19. 7
  20. 70
  21. 28
  22. 32
  23. 66
  24. 11
  25. 35
  26. 18
  27. 13
  28. 13
  29. 25
  30. 32
  31. 55
  32. 41
  33. 89
  34. 4
  35. 30
  36. 23
  37. 34
  38. 53
  39. 40
  40. 34

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