← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 188 · 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 numbers is 134. What is the smallest of them?
  2. 2.One number is 3 times another. Their difference is 60. What is the smaller number?
  3. 3.One number is 5 times another. Their difference is 100. What is the smaller number?
  4. 4.The sum of 4 consecutive even numbers is 308. What is the largest of them?
  5. 5.The sum of two numbers is 64 and their difference is 24. What is the smaller number?
  6. 6.The sum of two numbers is 82 and their difference is 14. What is the larger number?
  7. 7.The sum of 4 consecutive numbers is 190. What is the largest of them?
  8. 8.The sum of 4 consecutive numbers is 226. What is the largest of them?
  9. 9.The sum of two numbers is 28 and their difference is 6. What is the larger number?
  10. 10.One number is 5 times another. Their difference is 84. What is the smaller number?
  11. 11.The sum of 3 consecutive odd numbers is 117. What is the largest of them?
  12. 12.The sum of 3 consecutive numbers is 84. What is the smallest of them?
  13. 13.The sum of 3 consecutive odd numbers is 45. What is the smallest of them?
  14. 14.The sum of two numbers is 41 and their difference is 31. What is the larger number?
  15. 15.The sum of 3 consecutive even numbers is 186. What is the smallest of them?
  16. 16.The sum of 3 consecutive numbers is 147. What is the largest of them?
  17. 17.One number is 6 times another. Their difference is 60. What is the smaller number?
  18. 18.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?
  19. 19.The sum of 3 consecutive numbers is 171. What is the largest of them?
  20. 20.The sum of two numbers is 43 and their difference is 11. What is the smaller number?
  21. 21.The digits of a two-digit number add up to 13. When the digits swap places, the number goes up by 45. What is the number?
  22. 22.One number is 2 times another. Their difference is 4. What is the smaller number?
  23. 23.The sum of 3 consecutive numbers is 114. What is the smallest of them?
  24. 24.One number is 3 times another. Their difference is 68. What is the smaller number?
  25. 25.The sum of 4 consecutive odd numbers is 232. What is the largest of them?
  26. 26.One number is 3 times another. Their difference is 80. What is the smaller number?
  27. 27.One number is 2 times another. Their difference is 7. What is the smaller number?
  28. 28.The sum of two numbers is 91 and their difference is 53. What is the larger number?
  29. 29.The sum of two numbers is 99 and their difference is 83. What is the smaller number?
  30. 30.The sum of 3 consecutive even numbers is 126. What is the smallest of them?
  31. 31.The sum of two numbers is 71 and their difference is 17. What is the smaller number?
  32. 32.The sum of 4 consecutive numbers is 26. What is the smallest of them?
  33. 33.The sum of two numbers is 99 and their difference is 1. What is the larger number?
  34. 34.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?
  35. 35.The sum of 5 consecutive numbers is 230. What is the smallest of them?
  36. 36.The sum of 4 consecutive odd numbers is 40. What is the smallest of them?
  37. 37.The sum of two numbers is 57 and their difference is 37. What is the smaller number?
  38. 38.One number is 2 times another. Their difference is 22. What is the smaller number?
  39. 39.The sum of two numbers is 48 and their difference is 20. What is the smaller number?
  40. 40.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?

Answer key

  1. 32
  2. 30
  3. 25
  4. 80
  5. 20
  6. 48
  7. 49
  8. 58
  9. 17
  10. 21
  11. 41
  12. 27
  13. 13
  14. 36
  15. 60
  16. 50
  17. 12
  18. 79
  19. 58
  20. 16
  21. 49
  22. 4
  23. 37
  24. 34
  25. 61
  26. 40
  27. 7
  28. 72
  29. 8
  30. 40
  31. 27
  32. 5
  33. 50
  34. 46
  35. 44
  36. 7
  37. 10
  38. 22
  39. 14
  40. 48

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