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Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 202 · 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 190. What is the largest of them?
  2. 2.One number is 6 times another. Their difference is 50. What is the smaller number?
  3. 3.The sum of 4 consecutive numbers is 54. What is the smallest of them?
  4. 4.The sum of 5 consecutive numbers is 195. What is the largest of them?
  5. 5.The sum of 3 consecutive even numbers is 126. What is the largest of them?
  6. 6.The sum of two numbers is 51 and their difference is 7. What is the larger number?
  7. 7.The sum of 4 consecutive odd numbers is 256. What is the largest of them?
  8. 8.One number is 4 times another. Their difference is 111. What is the smaller number?
  9. 9.The sum of 4 consecutive even numbers is 52. What is the smallest of them?
  10. 10.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?
  11. 11.The sum of 4 consecutive odd numbers is 328. What is the largest of them?
  12. 12.The sum of two numbers is 23 and their difference is 5. What is the smaller number?
  13. 13.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?
  14. 14.The sum of 4 consecutive numbers is 42. What is the smallest of them?
  15. 15.The sum of 5 consecutive numbers is 240. What is the largest of them?
  16. 16.The sum of 4 consecutive numbers is 234. What is the smallest of them?
  17. 17.One number is 2 times another. Their difference is 8. What is the smaller number?
  18. 18.The sum of two numbers is 85 and their difference is 67. What is the smaller number?
  19. 19.One number is 4 times another. Their difference is 99. What is the smaller number?
  20. 20.The sum of 4 consecutive odd numbers is 184. What is the largest of them?
  21. 21.One number is 4 times another. Their difference is 75. What is the smaller number?
  22. 22.The sum of two numbers is 88 and their difference is 10. What is the larger number?
  23. 23.The sum of 4 consecutive odd numbers is 160. What is the smallest of them?
  24. 24.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?
  25. 25.One number is 3 times another. Their difference is 54. What is the smaller number?
  26. 26.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?
  27. 27.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?
  28. 28.The sum of two numbers is 70 and their difference is 28. What is the smaller number?
  29. 29.The sum of 4 consecutive even numbers is 84. What is the largest of them?
  30. 30.The sum of two numbers is 12 and their difference is 8. What is the smaller number?
  31. 31.The sum of 5 consecutive numbers is 160. What is the largest of them?
  32. 32.The sum of 4 consecutive odd numbers is 120. What is the largest of them?
  33. 33.The sum of 5 consecutive numbers is 190. What is the smallest of them?
  34. 34.The sum of 4 consecutive odd numbers is 184. What is the smallest of them?
  35. 35.The sum of 5 consecutive numbers is 265. What is the smallest of them?
  36. 36.The digits of a two-digit number add up to 11. When the digits swap places, the number goes up by 45. What is the number?
  37. 37.The sum of two numbers is 24 and their difference is 8. What is the larger number?
  38. 38.The digits of a two-digit number add up to 8. When the digits swap places, the number goes up by 18. What is the number?
  39. 39.One number is 3 times another. Their difference is 56. What is the smaller number?
  40. 40.The sum of two numbers is 100 and their difference is 92. What is the smaller number?

Answer key

  1. 40
  2. 10
  3. 12
  4. 41
  5. 44
  6. 29
  7. 67
  8. 37
  9. 10
  10. 89
  11. 85
  12. 9
  13. 27
  14. 9
  15. 50
  16. 57
  17. 8
  18. 9
  19. 33
  20. 49
  21. 25
  22. 49
  23. 37
  24. 47
  25. 27
  26. 67
  27. 19
  28. 21
  29. 24
  30. 2
  31. 34
  32. 33
  33. 36
  34. 43
  35. 51
  36. 38
  37. 16
  38. 35
  39. 28
  40. 4

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