← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 406 · 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 even numbers is 132. What is the largest of them?
  2. 2.One number is 4 times another. Their difference is 39. What is the smaller number?
  3. 3.The sum of 3 consecutive even numbers is 126. What is the smallest of them?
  4. 4.The digits of a two-digit number add up to 8. When the digits swap places, the number goes up by 36. What is the number?
  5. 5.The sum of 3 consecutive odd numbers is 33. What is the smallest of them?
  6. 6.The sum of 3 consecutive numbers is 156. What is the smallest of them?
  7. 7.The sum of 5 consecutive numbers is 295. What is the smallest of them?
  8. 8.One number is 6 times another. Their difference is 35. What is the smaller number?
  9. 9.The sum of two numbers is 66 and their difference is 54. What is the smaller number?
  10. 10.The sum of 4 consecutive numbers is 26. What is the largest of them?
  11. 11.One number is 4 times another. Their difference is 84. What is the smaller number?
  12. 12.One number is 3 times another. Their difference is 72. What is the smaller number?
  13. 13.The sum of 4 consecutive even numbers is 212. What is the smallest of them?
  14. 14.The sum of two numbers is 65 and their difference is 39. What is the smaller number?
  15. 15.The sum of 3 consecutive numbers is 168. What is the smallest of them?
  16. 16.The sum of 3 consecutive even numbers is 78. What is the smallest of them?
  17. 17.The sum of 3 consecutive odd numbers is 171. What is the largest of them?
  18. 18.The sum of 3 consecutive numbers is 147. What is the smallest of them?
  19. 19.One number is 2 times another. Their difference is 32. What is the smaller number?
  20. 20.The sum of 3 consecutive numbers is 30. What is the largest of them?
  21. 21.The sum of two numbers is 36 and their difference is 24. What is the smaller number?
  22. 22.The sum of 3 consecutive odd numbers is 117. What is the smallest of them?
  23. 23.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?
  24. 24.The sum of two numbers is 197 and their difference is 1. What is the smaller number?
  25. 25.The sum of two numbers is 51 and their difference is 37. What is the larger number?
  26. 26.The digits of a two-digit number add up to 14. When the digits swap places, the number goes up by 36. What is the number?
  27. 27.The sum of two numbers is 45 and their difference is 31. What is the larger number?
  28. 28.The sum of 3 consecutive numbers is 90. What is the largest of them?
  29. 29.The sum of two numbers is 61 and their difference is 5. What is the smaller number?
  30. 30.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?
  31. 31.The sum of two numbers is 12 and their difference is 10. What is the larger number?
  32. 32.The sum of 5 consecutive numbers is 115. What is the largest of them?
  33. 33.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?
  34. 34.The sum of 5 consecutive numbers is 35. What is the smallest of them?
  35. 35.One number is 3 times another. Their difference is 64. What is the smaller number?
  36. 36.One number is 3 times another. Their difference is 16. What is the smaller number?
  37. 37.The sum of 4 consecutive even numbers is 204. What is the largest of them?
  38. 38.The sum of two numbers is 83 and their difference is 7. What is the smaller number?
  39. 39.The sum of 3 consecutive numbers is 27. What is the smallest of them?
  40. 40.The sum of 5 consecutive numbers is 210. What is the smallest of them?

Answer key

  1. 36
  2. 13
  3. 40
  4. 26
  5. 9
  6. 51
  7. 57
  8. 7
  9. 6
  10. 8
  11. 28
  12. 36
  13. 50
  14. 13
  15. 55
  16. 24
  17. 59
  18. 48
  19. 32
  20. 11
  21. 6
  22. 37
  23. 24
  24. 98
  25. 44
  26. 59
  27. 38
  28. 31
  29. 28
  30. 45
  31. 11
  32. 25
  33. 19
  34. 5
  35. 32
  36. 8
  37. 54
  38. 38
  39. 8
  40. 40

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