← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 422 · 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 5 consecutive numbers is 205. What is the largest of them?
  2. 2.One number is 4 times another. Their difference is 99. What is the smaller number?
  3. 3.The sum of two numbers is 99 and their difference is 77. What is the smaller number?
  4. 4.One number is 3 times another. Their difference is 46. What is the smaller number?
  5. 5.One number is 6 times another. Their difference is 195. What is the smaller number?
  6. 6.The sum of 3 consecutive numbers is 126. What is the smallest of them?
  7. 7.The sum of 3 consecutive even numbers is 246. What is the largest 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 even numbers is 108. What is the largest of them?
  10. 10.The sum of 4 consecutive odd numbers is 296. What is the smallest of them?
  11. 11.The sum of two numbers is 112 and their difference is 40. What is the smaller number?
  12. 12.One number is 2 times another. Their difference is 14. What is the smaller number?
  13. 13.One number is 5 times another. Their difference is 156. What is the smaller number?
  14. 14.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?
  15. 15.The sum of 4 consecutive numbers is 50. What is the largest of them?
  16. 16.The sum of 4 consecutive numbers is 238. What is the smallest of them?
  17. 17.The sum of 4 consecutive numbers is 46. What is the largest of them?
  18. 18.The sum of 3 consecutive odd numbers is 177. What is the smallest of them?
  19. 19.The sum of two numbers is 59 and their difference is 49. What is the larger number?
  20. 20.The sum of 3 consecutive odd numbers is 195. What is the largest of them?
  21. 21.The sum of 5 consecutive numbers is 275. What is the largest of them?
  22. 22.One number is 5 times another. Their difference is 132. What is the smaller number?
  23. 23.The sum of 3 consecutive even numbers is 156. What is the largest of them?
  24. 24.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?
  25. 25.The digits of a two-digit number add up to 9. When the digits swap places, the number goes up by 45. What is the number?
  26. 26.The sum of two numbers is 24 and their difference is 18. What is the larger number?
  27. 27.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?
  28. 28.The sum of 4 consecutive even numbers is 212. What is the largest of them?
  29. 29.The sum of 3 consecutive odd numbers is 165. What is the smallest of them?
  30. 30.The sum of 3 consecutive odd numbers is 51. What is the largest of them?
  31. 31.The sum of 4 consecutive numbers is 46. What is the smallest of them?
  32. 32.The sum of 4 consecutive numbers is 146. What is the smallest of them?
  33. 33.One number is 3 times another. Their difference is 26. What is the smaller number?
  34. 34.The sum of two numbers is 39 and their difference is 33. What is the smaller number?
  35. 35.One number is 4 times another. Their difference is 72. What is the smaller number?
  36. 36.The digits of a two-digit number add up to 13. When the digits swap places, the number goes up by 27. What is the number?
  37. 37.The digits of a two-digit number add up to 3. When the digits swap places, the number goes up by 9. What is the number?
  38. 38.The digits of a two-digit number add up to 12. When the digits swap places, the number goes up by 18. What is the number?
  39. 39.The sum of 3 consecutive even numbers is 156. What is the smallest of them?
  40. 40.One number is 2 times another. Their difference is 26. What is the smaller number?

Answer key

  1. 43
  2. 33
  3. 11
  4. 23
  5. 39
  6. 41
  7. 84
  8. 44
  9. 38
  10. 71
  11. 36
  12. 14
  13. 39
  14. 89
  15. 14
  16. 58
  17. 13
  18. 57
  19. 54
  20. 67
  21. 57
  22. 33
  23. 54
  24. 78
  25. 27
  26. 21
  27. 36
  28. 56
  29. 53
  30. 19
  31. 10
  32. 35
  33. 13
  34. 3
  35. 24
  36. 58
  37. 12
  38. 57
  39. 50
  40. 26

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