← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 792 · 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 135. What is the largest of them?
  2. 2.The sum of two numbers is 134 and their difference is 48. What is the smaller number?
  3. 3.The sum of two numbers is 20 and their difference is 2. What is the larger number?
  4. 4.The sum of 5 consecutive numbers is 95. What is the largest of them?
  5. 5.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?
  6. 6.The sum of 3 consecutive odd numbers is 147. What is the smallest of them?
  7. 7.The sum of 5 consecutive numbers is 70. What is the largest of them?
  8. 8.The sum of 4 consecutive odd numbers is 248. What is the smallest of them?
  9. 9.The sum of 3 consecutive even numbers is 150. What is the smallest of them?
  10. 10.One number is 4 times another. Their difference is 15. What is the smaller number?
  11. 11.One number is 3 times another. Their difference is 38. What is the smaller number?
  12. 12.The sum of 3 consecutive even numbers is 222. What is the smallest of them?
  13. 13.One number is 2 times another. Their difference is 5. What is the smaller number?
  14. 14.The sum of 3 consecutive odd numbers is 249. What is the smallest of them?
  15. 15.The digits of a two-digit number add up to 11. When the digits swap places, the number goes up by 27. What is the number?
  16. 16.The sum of 3 consecutive odd numbers is 93. What is the largest of them?
  17. 17.The sum of 3 consecutive numbers is 183. What is the smallest of them?
  18. 18.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?
  19. 19.One number is 6 times another. Their difference is 155. What is the smaller number?
  20. 20.The sum of 3 consecutive even numbers is 144. What is the smallest of them?
  21. 21.One number is 5 times another. Their difference is 32. What is the smaller number?
  22. 22.One number is 3 times another. Their difference is 64. What is the smaller number?
  23. 23.One number is 2 times another. Their difference is 13. What is the smaller number?
  24. 24.The sum of 4 consecutive numbers is 246. What is the largest of them?
  25. 25.The sum of two numbers is 121 and their difference is 3. What is the larger number?
  26. 26.The sum of 4 consecutive even numbers is 188. What is the smallest of them?
  27. 27.The digits of a two-digit number add up to 11. When the digits swap places, the number goes up by 63. What is the number?
  28. 28.The sum of 3 consecutive even numbers is 60. What is the largest of them?
  29. 29.The sum of 3 consecutive even numbers is 138. What is the smallest of them?
  30. 30.The sum of 4 consecutive odd numbers is 80. What is the smallest of them?
  31. 31.The sum of 4 consecutive even numbers is 108. What is the largest of them?
  32. 32.The sum of 5 consecutive numbers is 180. What is the smallest of them?
  33. 33.One number is 6 times another. Their difference is 145. What is the smaller number?
  34. 34.The sum of two numbers is 142 and their difference is 44. What is the smaller number?
  35. 35.The sum of 4 consecutive numbers is 170. What is the smallest of them?
  36. 36.The sum of 3 consecutive odd numbers is 69. What is the smallest of them?
  37. 37.The sum of 3 consecutive even numbers is 36. What is the largest of them?
  38. 38.The sum of two numbers is 109 and their difference is 27. What is the smaller number?
  39. 39.The sum of 5 consecutive numbers is 170. What is the largest of them?
  40. 40.The sum of 3 consecutive numbers is 81. What is the largest of them?

Answer key

  1. 29
  2. 43
  3. 11
  4. 21
  5. 14
  6. 47
  7. 16
  8. 59
  9. 48
  10. 5
  11. 19
  12. 72
  13. 5
  14. 81
  15. 47
  16. 33
  17. 60
  18. 89
  19. 31
  20. 46
  21. 8
  22. 32
  23. 13
  24. 63
  25. 62
  26. 44
  27. 29
  28. 22
  29. 44
  30. 17
  31. 30
  32. 34
  33. 29
  34. 49
  35. 41
  36. 21
  37. 14
  38. 41
  39. 36
  40. 28

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