← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 844 · 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.One number is 3 times another. Their difference is 14. What is the smaller number?
  2. 2.The sum of 3 consecutive numbers is 138. What is the smallest of them?
  3. 3.The sum of 5 consecutive numbers is 80. What is the smallest of them?
  4. 4.One number is 6 times another. Their difference is 130. What is the smaller number?
  5. 5.The sum of two numbers is 47 and their difference is 25. What is the larger number?
  6. 6.The sum of 3 consecutive even numbers is 138. What is the largest of them?
  7. 7.The sum of 3 consecutive numbers is 27. What is the smallest of them?
  8. 8.One number is 6 times another. Their difference is 170. What is the smaller number?
  9. 9.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?
  10. 10.The sum of 4 consecutive even numbers is 252. What is the smallest of them?
  11. 11.The sum of 3 consecutive numbers is 129. What is the smallest of them?
  12. 12.The sum of 4 consecutive even numbers is 52. What is the smallest of them?
  13. 13.The sum of 4 consecutive even numbers is 188. What is the smallest of them?
  14. 14.One number is 2 times another. Their difference is 7. What is the smaller number?
  15. 15.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?
  16. 16.The sum of 5 consecutive numbers is 100. What is the smallest of them?
  17. 17.The sum of 4 consecutive numbers is 198. What is the largest of them?
  18. 18.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?
  19. 19.The sum of two numbers is 40 and their difference is 2. What is the larger number?
  20. 20.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?
  21. 21.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?
  22. 22.The sum of 3 consecutive odd numbers is 237. What is the smallest of them?
  23. 23.The sum of two numbers is 101 and their difference is 3. What is the smaller number?
  24. 24.The sum of 3 consecutive even numbers is 66. What is the smallest of them?
  25. 25.The sum of 3 consecutive odd numbers is 87. What is the smallest of them?
  26. 26.The digits of a two-digit number add up to 10. When the digits swap places, the number goes up by 36. What is the number?
  27. 27.One number is 4 times another. Their difference is 93. What is the smaller number?
  28. 28.One number is 2 times another. Their difference is 32. What is the smaller number?
  29. 29.One number is 2 times another. Their difference is 28. What is the smaller number?
  30. 30.The sum of 4 consecutive even numbers is 324. What is the largest of them?
  31. 31.The sum of 3 consecutive even numbers is 72. What is the smallest of them?
  32. 32.The sum of two numbers is 79 and their difference is 27. What is the smaller number?
  33. 33.The sum of 3 consecutive even numbers is 78. What is the largest of them?
  34. 34.One number is 6 times another. Their difference is 140. What is the smaller number?
  35. 35.The sum of two numbers is 14 and their difference is 12. What is the larger number?
  36. 36.One number is 4 times another. Their difference is 33. What is the smaller number?
  37. 37.The sum of 3 consecutive numbers is 39. What is the smallest of them?
  38. 38.The sum of 3 consecutive odd numbers is 129. What is the largest of them?
  39. 39.The sum of 4 consecutive even numbers is 116. What is the smallest of them?
  40. 40.The sum of 3 consecutive odd numbers is 51. What is the largest of them?

Answer key

  1. 7
  2. 45
  3. 14
  4. 26
  5. 36
  6. 48
  7. 8
  8. 34
  9. 79
  10. 60
  11. 42
  12. 10
  13. 44
  14. 7
  15. 58
  16. 18
  17. 51
  18. 57
  19. 21
  20. 36
  21. 69
  22. 77
  23. 49
  24. 20
  25. 27
  26. 37
  27. 31
  28. 32
  29. 28
  30. 84
  31. 22
  32. 26
  33. 28
  34. 28
  35. 13
  36. 11
  37. 12
  38. 45
  39. 26
  40. 19

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