← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 600 · 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 two numbers is 88 and their difference is 78. What is the smaller number?
  2. 2.The sum of two numbers is 152 and their difference is 44. What is the larger number?
  3. 3.The sum of 3 consecutive even numbers is 24. What is the largest of them?
  4. 4.The sum of two numbers is 38 and their difference is 26. What is the larger number?
  5. 5.The sum of two numbers is 46 and their difference is 40. What is the smaller number?
  6. 6.The digits of a two-digit number add up to 10. When the digits swap places, the number goes up by 54. What is the number?
  7. 7.One number is 2 times another. Their difference is 15. What is the smaller number?
  8. 8.The sum of 4 consecutive numbers is 146. What is the smallest of them?
  9. 9.The sum of 5 consecutive numbers is 175. What is the smallest of them?
  10. 10.The sum of two numbers is 136 and their difference is 14. What is the smaller number?
  11. 11.The sum of 5 consecutive numbers is 145. What is the smallest of them?
  12. 12.The sum of 3 consecutive even numbers is 60. What is the largest of them?
  13. 13.The sum of 5 consecutive numbers is 120. What is the largest of them?
  14. 14.The sum of 4 consecutive odd numbers is 192. What is the smallest of them?
  15. 15.One number is 6 times another. Their difference is 135. What is the smaller number?
  16. 16.The sum of 3 consecutive numbers is 48. What is the largest of them?
  17. 17.One number is 6 times another. Their difference is 50. What is the smaller number?
  18. 18.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?
  19. 19.The sum of 5 consecutive numbers is 280. What is the largest of them?
  20. 20.The sum of 4 consecutive numbers is 42. What is the smallest of them?
  21. 21.The sum of 5 consecutive numbers is 190. What is the largest of them?
  22. 22.The sum of 4 consecutive odd numbers is 160. What is the largest of them?
  23. 23.The sum of 3 consecutive numbers is 162. What is the largest of them?
  24. 24.The sum of 3 consecutive even numbers is 144. What is the smallest of them?
  25. 25.One number is 6 times another. Their difference is 160. What is the smaller number?
  26. 26.The sum of 3 consecutive numbers is 57. What is the smallest of them?
  27. 27.The sum of two numbers is 24 and their difference is 10. What is the larger number?
  28. 28.The sum of two numbers is 92 and their difference is 88. What is the smaller number?
  29. 29.The sum of 5 consecutive numbers is 240. What is the smallest of them?
  30. 30.The sum of 4 consecutive odd numbers is 40. What is the smallest of them?
  31. 31.The sum of two numbers is 31 and their difference is 23. What is the larger number?
  32. 32.The sum of 3 consecutive odd numbers is 135. What is the smallest of them?
  33. 33.The digits of a two-digit number add up to 5. When the digits swap places, the number goes up by 27. What is the number?
  34. 34.The sum of 3 consecutive numbers is 48. What is the smallest of them?
  35. 35.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?
  36. 36.The sum of 3 consecutive odd numbers is 231. What is the smallest of them?
  37. 37.One number is 3 times another. Their difference is 20. What is the smaller number?
  38. 38.The sum of 5 consecutive numbers is 255. What is the smallest of them?
  39. 39.The sum of 4 consecutive even numbers is 284. What is the smallest of them?
  40. 40.The sum of 3 consecutive odd numbers is 117. What is the largest of them?

Answer key

  1. 5
  2. 98
  3. 10
  4. 32
  5. 3
  6. 28
  7. 15
  8. 35
  9. 33
  10. 61
  11. 27
  12. 22
  13. 26
  14. 45
  15. 27
  16. 17
  17. 10
  18. 34
  19. 58
  20. 9
  21. 40
  22. 43
  23. 55
  24. 46
  25. 32
  26. 18
  27. 17
  28. 2
  29. 46
  30. 7
  31. 27
  32. 43
  33. 14
  34. 15
  35. 89
  36. 75
  37. 10
  38. 49
  39. 68
  40. 41

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