← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 586 · 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 two numbers is 93 and their difference is 81. What is the larger number?
  2. 2.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?
  3. 3.The sum of 4 consecutive even numbers is 236. What is the smallest of them?
  4. 4.The sum of 3 consecutive odd numbers is 81. What is the largest of them?
  5. 5.The digits of a two-digit number add up to 9. When the digits swap places, the number goes up by 45. What is the number?
  6. 6.One number is 4 times another. Their difference is 90. What is the smaller number?
  7. 7.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?
  8. 8.The sum of 4 consecutive odd numbers is 256. What is the smallest of them?
  9. 9.The sum of 3 consecutive numbers is 126. What is the smallest of them?
  10. 10.One number is 2 times another. Their difference is 36. What is the smaller number?
  11. 11.The sum of 5 consecutive numbers is 245. What is the largest of them?
  12. 12.The sum of 4 consecutive numbers is 182. What is the smallest of them?
  13. 13.The sum of two numbers is 82 and their difference is 46. What is the smaller number?
  14. 14.The sum of two numbers is 20 and their difference is 12. What is the smaller number?
  15. 15.One number is 4 times another. Their difference is 36. What is the smaller number?
  16. 16.The digits of a two-digit number add up to 10. When the digits swap places, the number goes up by 72. What is the number?
  17. 17.The sum of two numbers is 91 and their difference is 3. What is the smaller number?
  18. 18.The sum of 4 consecutive even numbers is 124. What is the smallest of them?
  19. 19.The sum of two numbers is 99 and their difference is 85. What is the larger number?
  20. 20.One number is 2 times another. Their difference is 22. What is the smaller number?
  21. 21.The sum of 4 consecutive numbers is 154. What is the smallest of them?
  22. 22.The sum of 4 consecutive numbers is 222. What is the smallest of them?
  23. 23.The sum of 4 consecutive numbers is 78. What is the smallest of them?
  24. 24.The sum of 3 consecutive numbers is 108. What is the largest of them?
  25. 25.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?
  26. 26.The sum of two numbers is 96 and their difference is 66. What is the larger number?
  27. 27.The sum of 4 consecutive even numbers is 220. What is the smallest of them?
  28. 28.The sum of 5 consecutive numbers is 50. What is the largest of them?
  29. 29.The digits of a two-digit number add up to 6. When the digits swap places, the number goes up by 18. What is the number?
  30. 30.The sum of 3 consecutive numbers is 141. What is the smallest of them?
  31. 31.One number is 4 times another. Their difference is 24. What is the smaller number?
  32. 32.One number is 4 times another. Their difference is 9. What is the smaller number?
  33. 33.The sum of two numbers is 56 and their difference is 40. What is the smaller number?
  34. 34.One number is 5 times another. Their difference is 108. What is the smaller number?
  35. 35.The sum of 5 consecutive numbers is 225. What is the largest of them?
  36. 36.One number is 6 times another. Their difference is 55. What is the smaller number?
  37. 37.The sum of 3 consecutive numbers is 69. What is the largest of them?
  38. 38.The sum of 4 consecutive numbers is 170. What is the smallest of them?
  39. 39.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?
  40. 40.The sum of 3 consecutive numbers is 66. What is the smallest of them?

Answer key

  1. 87
  2. 29
  3. 56
  4. 29
  5. 27
  6. 30
  7. 37
  8. 61
  9. 41
  10. 36
  11. 51
  12. 44
  13. 18
  14. 4
  15. 12
  16. 19
  17. 44
  18. 28
  19. 92
  20. 22
  21. 37
  22. 54
  23. 18
  24. 37
  25. 67
  26. 81
  27. 52
  28. 12
  29. 24
  30. 46
  31. 8
  32. 3
  33. 8
  34. 27
  35. 47
  36. 11
  37. 24
  38. 41
  39. 89
  40. 21

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