← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 525 · 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 4 times another. Their difference is 48. What is the smaller number?
  2. 2.The sum of 4 consecutive even numbers is 268. What is the largest of them?
  3. 3.The sum of 4 consecutive odd numbers is 224. What is the smallest of them?
  4. 4.The sum of two numbers is 48 and their difference is 12. What is the larger number?
  5. 5.The sum of 4 consecutive numbers is 162. What is the largest of them?
  6. 6.The sum of 4 consecutive numbers is 178. What is the smallest of them?
  7. 7.The sum of 3 consecutive even numbers is 228. What is the smallest of them?
  8. 8.The sum of 4 consecutive numbers is 126. What is the largest of them?
  9. 9.One number is 5 times another. Their difference is 116. What is the smaller number?
  10. 10.The sum of 3 consecutive odd numbers is 51. What is the smallest of them?
  11. 11.One number is 6 times another. Their difference is 135. What is the smaller number?
  12. 12.The digits of a two-digit number add up to 13. When the digits swap places, the number goes up by 9. What is the number?
  13. 13.One number is 6 times another. Their difference is 175. What is the smaller number?
  14. 14.One number is 3 times another. Their difference is 76. What is the smaller number?
  15. 15.One number is 4 times another. Their difference is 93. What is the smaller number?
  16. 16.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?
  17. 17.The sum of two numbers is 13 and their difference is 11. What is the larger number?
  18. 18.One number is 4 times another. Their difference is 102. What is the smaller number?
  19. 19.The sum of 4 consecutive odd numbers is 184. What is the smallest of them?
  20. 20.The sum of 4 consecutive odd numbers is 176. What is the smallest of them?
  21. 21.One number is 4 times another. Their difference is 57. What is the smaller number?
  22. 22.One number is 5 times another. Their difference is 16. What is the smaller number?
  23. 23.The sum of 5 consecutive numbers is 60. What is the smallest of them?
  24. 24.The sum of 4 consecutive numbers is 38. What is the largest of them?
  25. 25.The sum of 3 consecutive odd numbers is 135. What is the smallest of them?
  26. 26.The sum of 4 consecutive numbers is 222. What is the largest of them?
  27. 27.The sum of 3 consecutive numbers is 93. What is the largest of them?
  28. 28.One number is 6 times another. Their difference is 110. What is the smaller number?
  29. 29.The sum of 4 consecutive even numbers is 132. What is the smallest of them?
  30. 30.The digits of a two-digit number add up to 12. When the digits swap places, the number goes up by 36. What is the number?
  31. 31.The sum of two numbers is 148 and their difference is 6. What is the smaller number?
  32. 32.The sum of two numbers is 53 and their difference is 37. What is the larger number?
  33. 33.The sum of 5 consecutive numbers is 225. What is the smallest of them?
  34. 34.The sum of 4 consecutive numbers is 234. What is the smallest of them?
  35. 35.The sum of 3 consecutive odd numbers is 147. What is the largest of them?
  36. 36.The digits of a two-digit number add up to 10. When the digits swap places, the number goes up by 54. What is the 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.One number is 4 times another. Their difference is 69. What is the smaller number?
  39. 39.The sum of 4 consecutive numbers is 154. What is the largest of them?
  40. 40.The sum of two numbers is 78 and their difference is 46. What is the smaller number?

Answer key

  1. 16
  2. 70
  3. 53
  4. 30
  5. 42
  6. 43
  7. 74
  8. 33
  9. 29
  10. 15
  11. 27
  12. 67
  13. 35
  14. 38
  15. 31
  16. 68
  17. 12
  18. 34
  19. 43
  20. 41
  21. 19
  22. 4
  23. 10
  24. 11
  25. 43
  26. 57
  27. 32
  28. 22
  29. 30
  30. 48
  31. 71
  32. 45
  33. 43
  34. 57
  35. 51
  36. 28
  37. 13
  38. 23
  39. 40
  40. 16

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