← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 182 · 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 digits of a two-digit number add up to 15. When the digits swap places, the number goes up by 9. What is the number?
  2. 2.The sum of 3 consecutive even numbers is 84. What is the largest of them?
  3. 3.The sum of 4 consecutive even numbers is 292. What is the largest of them?
  4. 4.One number is 6 times another. Their difference is 190. What is the smaller number?
  5. 5.The sum of 3 consecutive numbers is 126. What is the smallest of them?
  6. 6.One number is 2 times another. Their difference is 18. What is the smaller number?
  7. 7.The sum of 3 consecutive even numbers is 126. What is the smallest of them?
  8. 8.The sum of 4 consecutive numbers is 246. What is the largest of them?
  9. 9.The sum of two numbers is 41 and their difference is 7. What is the larger number?
  10. 10.The sum of two numbers is 62 and their difference is 46. What is the smaller number?
  11. 11.The sum of 3 consecutive numbers is 18. What is the smallest of them?
  12. 12.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?
  13. 13.The sum of two numbers is 85 and their difference is 7. What is the smaller number?
  14. 14.The sum of 4 consecutive numbers is 154. What is the smallest of them?
  15. 15.The sum of 4 consecutive numbers is 158. What is the smallest of them?
  16. 16.The sum of 3 consecutive numbers is 24. What is the largest of them?
  17. 17.The digits of a two-digit number add up to 5. When the digits swap places, the number goes up by 27. What is the number?
  18. 18.The sum of 3 consecutive odd numbers is 219. What is the largest of them?
  19. 19.One number is 4 times another. Their difference is 69. What is the smaller number?
  20. 20.The sum of two numbers is 61 and their difference is 33. What is the larger number?
  21. 21.The sum of 4 consecutive odd numbers is 64. What is the smallest of them?
  22. 22.The sum of 3 consecutive odd numbers is 177. What is the smallest of them?
  23. 23.One number is 3 times another. Their difference is 14. What is the smaller number?
  24. 24.The sum of 5 consecutive numbers is 70. What is the largest of them?
  25. 25.One number is 5 times another. Their difference is 100. What is the smaller number?
  26. 26.The sum of two numbers is 149 and their difference is 27. What is the larger number?
  27. 27.The sum of 3 consecutive odd numbers is 201. What is the largest of them?
  28. 28.The sum of two numbers is 34 and their difference is 32. What is the smaller number?
  29. 29.The sum of 4 consecutive numbers is 198. What is the smallest of them?
  30. 30.The sum of 3 consecutive odd numbers is 27. What is the smallest of them?
  31. 31.One number is 3 times another. Their difference is 46. What is the smaller number?
  32. 32.The sum of 4 consecutive numbers is 190. What is the largest of them?
  33. 33.The sum of 3 consecutive numbers is 117. What is the largest of them?
  34. 34.One number is 3 times another. Their difference is 18. What is the smaller number?
  35. 35.The digits of a two-digit number add up to 16. When the digits swap places, the number goes up by 18. What is the number?
  36. 36.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?
  37. 37.The sum of two numbers is 27 and their difference is 3. What is the smaller number?
  38. 38.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?
  39. 39.The sum of 4 consecutive even numbers is 156. What is the smallest of them?
  40. 40.The sum of 3 consecutive even numbers is 216. What is the smallest of them?

Answer key

  1. 78
  2. 30
  3. 76
  4. 38
  5. 41
  6. 18
  7. 40
  8. 63
  9. 24
  10. 8
  11. 5
  12. 69
  13. 39
  14. 37
  15. 38
  16. 9
  17. 14
  18. 75
  19. 23
  20. 47
  21. 13
  22. 57
  23. 7
  24. 16
  25. 25
  26. 88
  27. 69
  28. 1
  29. 48
  30. 7
  31. 23
  32. 49
  33. 40
  34. 9
  35. 79
  36. 37
  37. 12
  38. 89
  39. 36
  40. 70

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