← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 155 · 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 even numbers is 60. What is the smallest of them?
  2. 2.One number is 5 times another. Their difference is 96. What is the smaller number?
  3. 3.One number is 2 times another. Their difference is 34. What is the smaller number?
  4. 4.The sum of 4 consecutive numbers is 242. What is the largest of them?
  5. 5.The sum of 4 consecutive numbers is 178. What is the largest of them?
  6. 6.One number is 4 times another. Their difference is 96. What is the smaller number?
  7. 7.The sum of 3 consecutive even numbers is 144. What is the smallest of them?
  8. 8.One number is 2 times another. Their difference is 3. What is the smaller number?
  9. 9.The sum of two numbers is 42 and their difference is 30. What is the smaller number?
  10. 10.The sum of 3 consecutive odd numbers is 81. What is the smallest of them?
  11. 11.The sum of two numbers is 124 and their difference is 70. What is the larger number?
  12. 12.The sum of 3 consecutive numbers is 75. What is the smallest of them?
  13. 13.The sum of 4 consecutive odd numbers is 296. What is the smallest of them?
  14. 14.One number is 5 times another. Their difference is 12. What is the smaller number?
  15. 15.One number is 5 times another. Their difference is 104. What is the smaller number?
  16. 16.One number is 5 times another. Their difference is 52. What is the smaller number?
  17. 17.The sum of two numbers is 39 and their difference is 27. What is the larger number?
  18. 18.The sum of 3 consecutive numbers is 63. What is the smallest of them?
  19. 19.One number is 2 times another. Their difference is 16. What is the smaller number?
  20. 20.The digits of a two-digit number add up to 15. When the digits swap places, the number goes up by 27. What is the number?
  21. 21.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?
  22. 22.The sum of 4 consecutive numbers is 218. What is the largest of them?
  23. 23.One number is 2 times another. Their difference is 38. What is the smaller number?
  24. 24.The sum of two numbers is 94 and their difference is 76. What is the smaller number?
  25. 25.The sum of 3 consecutive odd numbers is 237. What is the largest of them?
  26. 26.The sum of 4 consecutive even numbers is 156. What is the largest of them?
  27. 27.The sum of 4 consecutive even numbers is 116. What is the smallest of them?
  28. 28.One number is 2 times another. Their difference is 25. What is the smaller number?
  29. 29.The sum of 3 consecutive numbers is 54. What is the largest of them?
  30. 30.The sum of 3 consecutive numbers is 72. What is the smallest of them?
  31. 31.The sum of 5 consecutive numbers is 140. What is the smallest of them?
  32. 32.One number is 3 times another. Their difference is 34. What is the smaller number?
  33. 33.One number is 4 times another. Their difference is 36. What is the smaller number?
  34. 34.The sum of two numbers is 93 and their difference is 37. What is the larger number?
  35. 35.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?
  36. 36.One number is 6 times another. Their difference is 90. What is the smaller number?
  37. 37.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?
  38. 38.The sum of 5 consecutive numbers is 225. What is the smallest of them?
  39. 39.The sum of 3 consecutive numbers is 150. What is the smallest of them?
  40. 40.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?

Answer key

  1. 12
  2. 24
  3. 34
  4. 62
  5. 46
  6. 32
  7. 46
  8. 3
  9. 6
  10. 25
  11. 97
  12. 24
  13. 71
  14. 3
  15. 26
  16. 13
  17. 33
  18. 20
  19. 16
  20. 69
  21. 57
  22. 56
  23. 38
  24. 9
  25. 81
  26. 42
  27. 26
  28. 25
  29. 19
  30. 23
  31. 26
  32. 17
  33. 12
  34. 65
  35. 36
  36. 18
  37. 56
  38. 43
  39. 49
  40. 58

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