← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 234 · 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 odd numbers is 208. What is the smallest of them?
  2. 2.The sum of two numbers is 25 and their difference is 3. What is the smaller number?
  3. 3.The digits of a two-digit number add up to 5. When the digits swap places, the number goes up by 27. What is the number?
  4. 4.The sum of 4 consecutive numbers is 242. What is the smallest of them?
  5. 5.One number is 6 times another. Their difference is 135. What is the smaller number?
  6. 6.The sum of 4 consecutive numbers is 246. What is the smallest of them?
  7. 7.The sum of 3 consecutive even numbers is 66. What is the smallest of them?
  8. 8.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?
  9. 9.The sum of 3 consecutive numbers is 99. What is the smallest of them?
  10. 10.One number is 6 times another. Their difference is 75. What is the smaller number?
  11. 11.One number is 6 times another. Their difference is 25. What is the smaller number?
  12. 12.The sum of 3 consecutive numbers is 57. What is the largest of them?
  13. 13.The sum of two numbers is 15 and their difference is 11. What is the smaller number?
  14. 14.The sum of 4 consecutive numbers is 230. What is the smallest of them?
  15. 15.One number is 5 times another. Their difference is 64. What is the smaller number?
  16. 16.The sum of 4 consecutive even numbers is 316. What is the smallest of them?
  17. 17.The digits of a two-digit number add up to 8. When the digits swap places, the number goes up by 54. What is the number?
  18. 18.The sum of two numbers is 56 and their difference is 46. What is the smaller number?
  19. 19.One number is 6 times another. Their difference is 155. What is the smaller number?
  20. 20.One number is 4 times another. Their difference is 15. What is the smaller number?
  21. 21.One number is 4 times another. Their difference is 99. What is the smaller number?
  22. 22.The sum of 4 consecutive even numbers is 324. What is the smallest of them?
  23. 23.The sum of 4 consecutive numbers is 62. What is the largest of them?
  24. 24.The sum of 3 consecutive odd numbers is 219. What is the smallest of them?
  25. 25.One number is 5 times another. Their difference is 152. What is the smaller number?
  26. 26.The digits of a two-digit number add up to 9. When the digits swap places, the number goes up by 9. What is the number?
  27. 27.The sum of 3 consecutive numbers is 42. What is the largest of them?
  28. 28.The sum of two numbers is 147 and their difference is 29. What is the larger number?
  29. 29.The sum of two numbers is 68 and their difference is 6. What is the smaller number?
  30. 30.The sum of 3 consecutive odd numbers is 129. What is the smallest of them?
  31. 31.The sum of 3 consecutive numbers is 138. What is the largest of them?
  32. 32.One number is 3 times another. Their difference is 34. What is the smaller number?
  33. 33.The sum of two numbers is 90 and their difference is 34. What is the smaller number?
  34. 34.The sum of two numbers is 39 and their difference is 1. What is the smaller number?
  35. 35.The sum of 3 consecutive odd numbers is 75. What is the largest of them?
  36. 36.The sum of two numbers is 158 and their difference is 8. What is the larger number?
  37. 37.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?
  38. 38.One number is 6 times another. Their difference is 200. What is the smaller number?
  39. 39.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?
  40. 40.One number is 3 times another. Their difference is 42. What is the smaller number?

Answer key

  1. 49
  2. 11
  3. 14
  4. 59
  5. 27
  6. 60
  7. 20
  8. 36
  9. 32
  10. 15
  11. 5
  12. 20
  13. 2
  14. 56
  15. 16
  16. 76
  17. 17
  18. 5
  19. 31
  20. 5
  21. 33
  22. 78
  23. 17
  24. 71
  25. 38
  26. 45
  27. 15
  28. 88
  29. 31
  30. 41
  31. 47
  32. 17
  33. 28
  34. 19
  35. 27
  36. 83
  37. 89
  38. 40
  39. 56
  40. 21

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