← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 42 · 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.One number is 5 times another. Their difference is 136. What is the smaller number?
  2. 2.The sum of 4 consecutive odd numbers is 88. What is the largest of them?
  3. 3.One number is 4 times another. Their difference is 12. What is the smaller number?
  4. 4.The sum of two numbers is 92 and their difference is 22. What is the smaller number?
  5. 5.The sum of two numbers is 109 and their difference is 17. What is the larger number?
  6. 6.One number is 6 times another. Their difference is 15. What is the smaller number?
  7. 7.The sum of 3 consecutive numbers is 57. What is the largest of them?
  8. 8.The sum of 3 consecutive numbers is 69. What is the largest of them?
  9. 9.The sum of 4 consecutive odd numbers is 232. What is the smallest of them?
  10. 10.The digits of a two-digit number add up to 13. When the digits swap places, the number goes up by 9. What is the number?
  11. 11.The sum of 4 consecutive numbers is 110. What is the largest of them?
  12. 12.One number is 2 times another. Their difference is 6. What is the smaller number?
  13. 13.One number is 5 times another. Their difference is 152. What is the smaller number?
  14. 14.One number is 5 times another. Their difference is 24. What is the smaller number?
  15. 15.The sum of 3 consecutive numbers is 123. What is the largest of them?
  16. 16.The sum of 4 consecutive even numbers is 252. What is the smallest of them?
  17. 17.The sum of 3 consecutive even numbers is 72. What is the smallest of them?
  18. 18.The sum of two numbers is 55 and their difference is 29. What is the smaller number?
  19. 19.The sum of two numbers is 23 and their difference is 13. What is the larger number?
  20. 20.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?
  21. 21.The sum of 4 consecutive numbers is 222. What is the smallest of them?
  22. 22.The sum of 4 consecutive even numbers is 36. What is the largest of them?
  23. 23.One number is 4 times another. Their difference is 36. What is the smaller number?
  24. 24.One number is 4 times another. Their difference is 111. What is the smaller number?
  25. 25.One number is 3 times another. Their difference is 42. What is the smaller number?
  26. 26.The sum of 3 consecutive even numbers is 36. What is the largest of them?
  27. 27.One number is 2 times another. Their difference is 17. What is the smaller number?
  28. 28.The sum of 4 consecutive odd numbers is 120. What is the largest of them?
  29. 29.The sum of two numbers is 14 and their difference is 8. What is the larger number?
  30. 30.The sum of 3 consecutive numbers is 63. What is the largest of them?
  31. 31.The sum of 3 consecutive odd numbers is 69. What is the largest of them?
  32. 32.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?
  33. 33.One number is 5 times another. Their difference is 64. What is the smaller number?
  34. 34.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?
  35. 35.The digits of a two-digit number add up to 4. When the digits swap places, the number goes up by 18. What is the number?
  36. 36.The sum of 3 consecutive even numbers is 66. What is the largest of them?
  37. 37.The sum of 3 consecutive even numbers is 192. What is the smallest of them?
  38. 38.The sum of 4 consecutive even numbers is 252. What is the largest of them?
  39. 39.The sum of two numbers is 117 and their difference is 9. What is the smaller number?
  40. 40.The sum of two numbers is 81 and their difference is 55. What is the larger number?

Answer key

  1. 34
  2. 25
  3. 4
  4. 35
  5. 63
  6. 3
  7. 20
  8. 24
  9. 55
  10. 67
  11. 29
  12. 6
  13. 38
  14. 6
  15. 42
  16. 60
  17. 22
  18. 13
  19. 18
  20. 57
  21. 54
  22. 12
  23. 12
  24. 37
  25. 21
  26. 14
  27. 17
  28. 33
  29. 11
  30. 22
  31. 25
  32. 46
  33. 16
  34. 23
  35. 13
  36. 24
  37. 62
  38. 66
  39. 54
  40. 68

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