← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 262 · 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 3 consecutive even numbers is 114. What is the smallest of them?
  2. 2.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?
  3. 3.The sum of two numbers is 110 and their difference is 62. What is the larger number?
  4. 4.The sum of 3 consecutive odd numbers is 129. What is the largest of them?
  5. 5.The sum of 3 consecutive even numbers is 30. What is the smallest of them?
  6. 6.The sum of 4 consecutive numbers is 218. What is the largest of them?
  7. 7.The sum of 4 consecutive odd numbers is 144. What is the largest of them?
  8. 8.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?
  9. 9.The digits of a two-digit number add up to 12. When the digits swap places, the number goes up by 18. What is the number?
  10. 10.One number is 2 times another. Their difference is 23. What is the smaller number?
  11. 11.One number is 4 times another. Their difference is 39. What is the smaller number?
  12. 12.The sum of 4 consecutive numbers is 158. What is the smallest of them?
  13. 13.One number is 3 times another. Their difference is 76. What is the smaller number?
  14. 14.The sum of 5 consecutive numbers is 270. What is the largest of them?
  15. 15.The sum of 5 consecutive numbers is 50. What is the largest of them?
  16. 16.The sum of two numbers is 101 and their difference is 1. What is the smaller number?
  17. 17.The sum of 3 consecutive even numbers is 114. What is the largest of them?
  18. 18.The sum of 4 consecutive odd numbers is 192. What is the smallest of them?
  19. 19.The sum of 3 consecutive numbers is 60. What is the smallest of them?
  20. 20.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?
  21. 21.The sum of 5 consecutive numbers is 120. What is the smallest of them?
  22. 22.The sum of two numbers is 67 and their difference is 9. What is the smaller number?
  23. 23.One number is 3 times another. Their difference is 36. What is the smaller number?
  24. 24.The sum of 4 consecutive numbers is 226. What is the smallest of them?
  25. 25.One number is 6 times another. Their difference is 50. What is the smaller number?
  26. 26.The digits of a two-digit number add up to 15. When the digits swap places, the number goes up by 27. What is the number?
  27. 27.The sum of 4 consecutive even numbers is 76. What is the smallest of them?
  28. 28.The sum of 3 consecutive numbers is 168. What is the smallest of them?
  29. 29.The sum of 3 consecutive numbers is 39. What is the smallest of them?
  30. 30.The sum of two numbers is 76 and their difference is 36. What is the smaller number?
  31. 31.The sum of 4 consecutive numbers is 170. What is the largest of them?
  32. 32.The sum of 5 consecutive numbers is 155. What is the largest of them?
  33. 33.The sum of 3 consecutive odd numbers is 141. What is the largest of them?
  34. 34.The sum of two numbers is 134 and their difference is 24. What is the larger number?
  35. 35.The sum of 4 consecutive even numbers is 316. What is the smallest of them?
  36. 36.The sum of 4 consecutive odd numbers is 296. What is the smallest of them?
  37. 37.One number is 3 times another. Their difference is 70. What is the smaller number?
  38. 38.The sum of 4 consecutive odd numbers is 176. What is the smallest of them?
  39. 39.The digits of a two-digit number add up to 11. When the digits swap places, the number goes up by 9. What is the number?
  40. 40.One number is 6 times another. Their difference is 200. What is the smaller number?

Answer key

  1. 36
  2. 59
  3. 86
  4. 45
  5. 8
  6. 56
  7. 39
  8. 48
  9. 57
  10. 23
  11. 13
  12. 38
  13. 38
  14. 56
  15. 12
  16. 50
  17. 40
  18. 45
  19. 19
  20. 47
  21. 22
  22. 29
  23. 18
  24. 55
  25. 10
  26. 69
  27. 16
  28. 55
  29. 12
  30. 20
  31. 44
  32. 33
  33. 49
  34. 79
  35. 76
  36. 71
  37. 35
  38. 41
  39. 56
  40. 40

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