← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 983 · 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 3 consecutive numbers is 111. What is the smallest of them?
  2. 2.The sum of two numbers is 68 and their difference is 54. What is the larger number?
  3. 3.One number is 6 times another. Their difference is 70. What is the smaller number?
  4. 4.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?
  5. 5.The sum of 4 consecutive even numbers is 196. What is the smallest of them?
  6. 6.One number is 3 times another. Their difference is 40. What is the smaller number?
  7. 7.The sum of 5 consecutive numbers is 235. What is the largest of them?
  8. 8.The sum of 4 consecutive even numbers is 316. What is the largest of them?
  9. 9.The sum of 3 consecutive even numbers is 198. What is the largest of them?
  10. 10.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?
  11. 11.The sum of 3 consecutive odd numbers is 237. What is the smallest of them?
  12. 12.One number is 4 times another. Their difference is 60. What is the smaller number?
  13. 13.One number is 6 times another. Their difference is 185. What is the smaller number?
  14. 14.The sum of 4 consecutive numbers is 142. What is the largest of them?
  15. 15.The digits of a two-digit number add up to 9. When the digits swap places, the number goes up by 27. What is the number?
  16. 16.The sum of two numbers is 154 and their difference is 32. What is the smaller number?
  17. 17.The sum of two numbers is 148 and their difference is 44. What is the smaller number?
  18. 18.The sum of 3 consecutive odd numbers is 177. What is the largest of them?
  19. 19.The sum of 3 consecutive numbers is 156. What is the smallest of them?
  20. 20.The sum of 3 consecutive even numbers is 186. What is the smallest of them?
  21. 21.The digits of a two-digit number add up to 8. When the digits swap places, the number goes up by 36. What is the number?
  22. 22.The sum of 5 consecutive numbers is 45. What is the largest of them?
  23. 23.The sum of 4 consecutive numbers is 66. What is the largest of them?
  24. 24.The sum of 3 consecutive even numbers is 210. What is the largest of them?
  25. 25.One number is 3 times another. Their difference is 6. What is the smaller number?
  26. 26.The sum of 3 consecutive even numbers is 156. What is the smallest of them?
  27. 27.The sum of 5 consecutive numbers is 130. What is the smallest of them?
  28. 28.The sum of two numbers is 39 and their difference is 35. What is the larger number?
  29. 29.The sum of 5 consecutive numbers is 90. What is the largest of them?
  30. 30.The sum of 5 consecutive numbers is 145. What is the smallest of them?
  31. 31.The sum of 3 consecutive numbers is 60. What is the largest of them?
  32. 32.The sum of 5 consecutive numbers is 100. What is the smallest of them?
  33. 33.The sum of two numbers is 49 and their difference is 11. What is the larger number?
  34. 34.The sum of two numbers is 120 and their difference is 70. What is the smaller number?
  35. 35.The sum of 5 consecutive numbers is 205. What is the smallest of them?
  36. 36.The sum of 4 consecutive even numbers is 228. What is the largest of them?
  37. 37.The sum of 4 consecutive numbers is 74. What is the smallest of them?
  38. 38.The sum of two numbers is 29 and their difference is 5. What is the smaller number?
  39. 39.The sum of two numbers is 107 and their difference is 39. What is the smaller number?
  40. 40.The sum of 3 consecutive even numbers is 162. What is the largest of them?

Answer key

  1. 36
  2. 61
  3. 14
  4. 89
  5. 46
  6. 20
  7. 49
  8. 82
  9. 68
  10. 47
  11. 77
  12. 20
  13. 37
  14. 37
  15. 36
  16. 61
  17. 52
  18. 61
  19. 51
  20. 60
  21. 26
  22. 11
  23. 18
  24. 72
  25. 3
  26. 50
  27. 24
  28. 37
  29. 20
  30. 27
  31. 21
  32. 18
  33. 30
  34. 25
  35. 39
  36. 60
  37. 17
  38. 12
  39. 34
  40. 56

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