← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 790 · 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 18. What is the smallest of them?
  2. 2.The sum of 4 consecutive odd numbers is 304. What is the smallest of them?
  3. 3.The sum of 3 consecutive numbers is 114. What is the largest of them?
  4. 4.The sum of 4 consecutive numbers is 94. What is the largest of them?
  5. 5.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?
  6. 6.The sum of 5 consecutive numbers is 50. What is the smallest of them?
  7. 7.The sum of 3 consecutive numbers is 78. What is the smallest of them?
  8. 8.One number is 3 times another. Their difference is 26. What is the smaller number?
  9. 9.The sum of 3 consecutive even numbers is 24. What is the smallest of them?
  10. 10.The sum of two numbers is 77 and their difference is 55. What is the larger number?
  11. 11.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?
  12. 12.The sum of two numbers is 23 and their difference is 15. What is the smaller number?
  13. 13.The sum of 4 consecutive even numbers is 36. What is the smallest of them?
  14. 14.The sum of two numbers is 50 and their difference is 38. What is the larger number?
  15. 15.The sum of two numbers is 21 and their difference is 3. What is the smaller number?
  16. 16.One number is 5 times another. Their difference is 68. What is the smaller number?
  17. 17.The sum of two numbers is 83 and their difference is 39. What is the smaller number?
  18. 18.One number is 4 times another. Their difference is 102. What is the smaller number?
  19. 19.The digits of a two-digit number add up to 13. When the digits swap places, the number goes up by 45. What is the number?
  20. 20.The sum of 3 consecutive odd numbers is 243. What is the largest of them?
  21. 21.The digits of a two-digit number add up to 14. When the digits swap places, the number goes up by 18. What is the number?
  22. 22.The digits of a two-digit number add up to 9. When the digits swap places, the number goes up by 63. What is the number?
  23. 23.The sum of 3 consecutive even numbers is 216. What is the smallest of them?
  24. 24.One number is 2 times another. Their difference is 12. What is the smaller number?
  25. 25.The sum of 5 consecutive numbers is 40. What is the smallest of them?
  26. 26.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?
  27. 27.The sum of two numbers is 43 and their difference is 3. What is the larger number?
  28. 28.The sum of two numbers is 143 and their difference is 11. What is the smaller number?
  29. 29.The sum of two numbers is 30 and their difference is 20. What is the smaller number?
  30. 30.The sum of two numbers is 44 and their difference is 28. What is the larger number?
  31. 31.The sum of two numbers is 153 and their difference is 9. What is the larger number?
  32. 32.The sum of 4 consecutive odd numbers is 184. What is the smallest of them?
  33. 33.The sum of 3 consecutive odd numbers is 63. What is the largest of them?
  34. 34.One number is 4 times another. Their difference is 90. What is the smaller number?
  35. 35.The sum of 5 consecutive numbers is 300. What is the smallest of them?
  36. 36.The sum of two numbers is 123 and their difference is 59. What is the smaller number?
  37. 37.The digits of a two-digit number add up to 4. When the digits swap places, the number goes up by 18. What is the number?
  38. 38.The sum of 4 consecutive even numbers is 156. What is the largest of them?
  39. 39.The sum of 3 consecutive odd numbers is 135. What is the smallest of them?
  40. 40.One number is 4 times another. Their difference is 66. What is the smaller number?

Answer key

  1. 5
  2. 73
  3. 39
  4. 25
  5. 78
  6. 8
  7. 25
  8. 13
  9. 6
  10. 66
  11. 12
  12. 4
  13. 6
  14. 44
  15. 9
  16. 17
  17. 22
  18. 34
  19. 49
  20. 83
  21. 68
  22. 18
  23. 70
  24. 12
  25. 6
  26. 69
  27. 23
  28. 66
  29. 5
  30. 36
  31. 81
  32. 43
  33. 23
  34. 30
  35. 58
  36. 32
  37. 13
  38. 42
  39. 43
  40. 22

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