← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 171 · 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 166. What is the smallest of them?
  2. 2.The sum of 3 consecutive odd numbers is 231. What is the largest of them?
  3. 3.The sum of 4 consecutive even numbers is 100. What is the largest of them?
  4. 4.The sum of 4 consecutive even numbers is 44. What is the largest of them?
  5. 5.The sum of two numbers is 109 and their difference is 85. What is the smaller number?
  6. 6.The sum of two numbers is 17 and their difference is 9. What is the smaller number?
  7. 7.The sum of 4 consecutive numbers is 170. What is the smallest of them?
  8. 8.The sum of 4 consecutive numbers is 182. What is the smallest of them?
  9. 9.The sum of 3 consecutive odd numbers is 165. What is the smallest of them?
  10. 10.The sum of 4 consecutive even numbers is 228. What is the largest of them?
  11. 11.The sum of 4 consecutive odd numbers is 240. What is the largest of them?
  12. 12.The sum of 4 consecutive even numbers is 260. What is the largest of them?
  13. 13.One number is 2 times another. Their difference is 14. What is the smaller number?
  14. 14.The sum of 3 consecutive odd numbers is 135. What is the largest of them?
  15. 15.The sum of 3 consecutive numbers is 123. What is the largest of them?
  16. 16.The sum of two numbers is 127 and their difference is 25. What is the larger number?
  17. 17.One number is 4 times another. Their difference is 60. What is the smaller number?
  18. 18.The sum of 3 consecutive numbers is 180. What is the largest of them?
  19. 19.One number is 4 times another. Their difference is 33. What is the smaller number?
  20. 20.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?
  21. 21.The sum of two numbers is 23 and their difference is 17. What is the smaller number?
  22. 22.One number is 6 times another. Their difference is 110. What is the smaller number?
  23. 23.The sum of two numbers is 25 and their difference is 7. What is the larger number?
  24. 24.The digits of a two-digit number add up to 11. When the digits swap places, the number goes up by 9. What is the number?
  25. 25.The sum of 4 consecutive odd numbers is 48. What is the smallest of them?
  26. 26.The sum of 3 consecutive numbers is 18. What is the smallest of them?
  27. 27.The sum of two numbers is 123 and their difference is 5. What is the smaller number?
  28. 28.The sum of two numbers is 178 and their difference is 8. What is the larger number?
  29. 29.The sum of 4 consecutive even numbers is 148. What is the smallest of them?
  30. 30.The sum of 4 consecutive even numbers is 292. What is the smallest of them?
  31. 31.The sum of 5 consecutive numbers is 90. What is the largest of them?
  32. 32.The sum of 4 consecutive numbers is 162. What is the smallest of them?
  33. 33.One number is 3 times another. Their difference is 22. What is the smaller number?
  34. 34.The sum of two numbers is 50 and their difference is 46. What is the smaller number?
  35. 35.The sum of two numbers is 87 and their difference is 3. What is the smaller number?
  36. 36.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?
  37. 37.The sum of 4 consecutive odd numbers is 304. What is the smallest of them?
  38. 38.One number is 5 times another. Their difference is 80. What is the smaller number?
  39. 39.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?
  40. 40.The sum of 4 consecutive odd numbers is 120. What is the largest of them?

Answer key

  1. 40
  2. 79
  3. 28
  4. 14
  5. 12
  6. 4
  7. 41
  8. 44
  9. 53
  10. 60
  11. 63
  12. 68
  13. 14
  14. 47
  15. 42
  16. 76
  17. 20
  18. 61
  19. 11
  20. 47
  21. 3
  22. 22
  23. 16
  24. 56
  25. 9
  26. 5
  27. 59
  28. 93
  29. 34
  30. 70
  31. 20
  32. 39
  33. 11
  34. 2
  35. 42
  36. 78
  37. 73
  38. 20
  39. 89
  40. 33

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