← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 591 · 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 64. What is the smallest of them?
  2. 2.The sum of 3 consecutive even numbers is 24. What is the largest of them?
  3. 3.One number is 2 times another. Their difference is 26. What is the smaller number?
  4. 4.The sum of 4 consecutive odd numbers is 64. What is the largest of them?
  5. 5.The sum of 3 consecutive even numbers is 114. What is the smallest of them?
  6. 6.The sum of 3 consecutive odd numbers is 69. What is the largest of them?
  7. 7.The digits of a two-digit number add up to 11. When the digits swap places, the number goes up by 27. What is the number?
  8. 8.One number is 3 times another. Their difference is 44. What is the smaller number?
  9. 9.One number is 4 times another. Their difference is 15. What is the smaller number?
  10. 10.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?
  11. 11.The sum of 4 consecutive numbers is 170. What is the largest of them?
  12. 12.The sum of 3 consecutive even numbers is 162. What is the smallest of them?
  13. 13.The sum of two numbers is 59 and their difference is 53. What is the larger number?
  14. 14.The sum of two numbers is 63 and their difference is 39. What is the smaller number?
  15. 15.One number is 5 times another. Their difference is 20. What is the smaller number?
  16. 16.The sum of 4 consecutive odd numbers is 136. What is the smallest of them?
  17. 17.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?
  18. 18.One number is 4 times another. Their difference is 63. What is the smaller number?
  19. 19.The sum of two numbers is 118 and their difference is 26. What is the smaller number?
  20. 20.The sum of two numbers is 30 and their difference is 10. What is the smaller number?
  21. 21.The sum of two numbers is 154 and their difference is 10. What is the larger number?
  22. 22.One number is 5 times another. Their difference is 52. What is the smaller number?
  23. 23.The sum of 4 consecutive even numbers is 140. What is the smallest of them?
  24. 24.The sum of 3 consecutive odd numbers is 99. What is the largest of them?
  25. 25.The sum of 3 consecutive numbers is 111. What is the largest of them?
  26. 26.The sum of two numbers is 32 and their difference is 8. What is the larger number?
  27. 27.The sum of 4 consecutive odd numbers is 328. What is the largest of them?
  28. 28.The sum of 5 consecutive numbers is 105. What is the smallest of them?
  29. 29.The sum of two numbers is 39 and their difference is 17. What is the smaller number?
  30. 30.The sum of 3 consecutive even numbers is 186. What is the smallest of them?
  31. 31.The sum of two numbers is 59 and their difference is 5. What is the smaller number?
  32. 32.One number is 6 times another. Their difference is 25. What is the smaller number?
  33. 33.The sum of 3 consecutive numbers is 60. What is the smallest of them?
  34. 34.The sum of two numbers is 165 and their difference is 31. What is the larger number?
  35. 35.The sum of 3 consecutive numbers is 78. What is the largest of them?
  36. 36.The sum of 3 consecutive numbers is 48. What is the smallest of them?
  37. 37.The sum of two numbers is 30 and their difference is 12. What is the larger number?
  38. 38.The sum of 4 consecutive numbers is 66. What is the largest of them?
  39. 39.One number is 5 times another. Their difference is 140. What is the smaller number?
  40. 40.The digits of a two-digit number add up to 8. When the digits swap places, the number goes up by 54. What is the number?

Answer key

  1. 13
  2. 10
  3. 26
  4. 19
  5. 36
  6. 25
  7. 47
  8. 22
  9. 5
  10. 35
  11. 44
  12. 52
  13. 56
  14. 12
  15. 5
  16. 31
  17. 59
  18. 21
  19. 46
  20. 10
  21. 82
  22. 13
  23. 32
  24. 35
  25. 38
  26. 20
  27. 85
  28. 19
  29. 11
  30. 60
  31. 27
  32. 5
  33. 19
  34. 98
  35. 27
  36. 15
  37. 21
  38. 18
  39. 35
  40. 17

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