← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 211 · 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 58. What is the largest of them?
  2. 2.The sum of 4 consecutive even numbers is 172. What is the largest of them?
  3. 3.The sum of 4 consecutive numbers is 74. What is the smallest of them?
  4. 4.The sum of 3 consecutive odd numbers is 45. What is the largest of them?
  5. 5.The sum of 4 consecutive even numbers is 276. What is the largest of them?
  6. 6.The sum of two numbers is 131 and their difference is 45. What is the larger number?
  7. 7.The sum of two numbers is 11 and their difference is 9. What is the smaller number?
  8. 8.The sum of 4 consecutive numbers is 162. What is the smallest of them?
  9. 9.One number is 3 times another. Their difference is 40. What is the smaller number?
  10. 10.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?
  11. 11.The sum of two numbers is 159 and their difference is 19. What is the smaller number?
  12. 12.The sum of two numbers is 50 and their difference is 44. What is the smaller number?
  13. 13.The sum of two numbers is 41 and their difference is 9. What is the smaller number?
  14. 14.The sum of two numbers is 63 and their difference is 3. What is the larger number?
  15. 15.One number is 6 times another. Their difference is 90. What is the smaller number?
  16. 16.The sum of two numbers is 168 and their difference is 6. What is the smaller number?
  17. 17.The sum of 3 consecutive odd numbers is 69. What is the largest of them?
  18. 18.The sum of 3 consecutive odd numbers is 51. What is the largest of them?
  19. 19.The sum of two numbers is 69 and their difference is 37. What is the smaller number?
  20. 20.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?
  21. 21.The sum of 4 consecutive numbers is 130. What is the smallest of them?
  22. 22.The sum of 4 consecutive even numbers is 260. What is the smallest of them?
  23. 23.The sum of two numbers is 119 and their difference is 9. What is the larger number?
  24. 24.The sum of two numbers is 70 and their difference is 30. What is the smaller number?
  25. 25.One number is 6 times another. Their difference is 135. What is the smaller number?
  26. 26.The sum of 3 consecutive even numbers is 168. What is the largest of them?
  27. 27.The sum of 4 consecutive numbers is 138. What is the smallest of them?
  28. 28.The digits of a two-digit number add up to 15. When the digits swap places, the number goes up by 9. What is the number?
  29. 29.One number is 4 times another. Their difference is 69. What is the smaller number?
  30. 30.The sum of 4 consecutive numbers is 62. What is the smallest of them?
  31. 31.The sum of 5 consecutive numbers is 190. What is the largest of them?
  32. 32.The sum of 4 consecutive numbers is 78. What is the largest 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 9. What is the number?
  34. 34.The sum of two numbers is 100 and their difference is 20. What is the smaller number?
  35. 35.The sum of 3 consecutive odd numbers is 165. What is the largest of them?
  36. 36.The sum of two numbers is 104 and their difference is 62. What is the smaller number?
  37. 37.One number is 2 times another. Their difference is 40. What is the smaller number?
  38. 38.The sum of 4 consecutive odd numbers is 104. What is the largest of them?
  39. 39.One number is 2 times another. Their difference is 31. What is the smaller number?
  40. 40.The sum of two numbers is 38 and their difference is 14. What is the smaller number?

Answer key

  1. 16
  2. 46
  3. 17
  4. 17
  5. 72
  6. 88
  7. 1
  8. 39
  9. 20
  10. 46
  11. 70
  12. 3
  13. 16
  14. 33
  15. 18
  16. 81
  17. 25
  18. 19
  19. 16
  20. 79
  21. 31
  22. 62
  23. 64
  24. 20
  25. 27
  26. 58
  27. 33
  28. 78
  29. 23
  30. 14
  31. 40
  32. 21
  33. 23
  34. 40
  35. 57
  36. 21
  37. 40
  38. 29
  39. 31
  40. 12

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