← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 15 · 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 numbers is 218. What is the smallest of them?
  2. 2.One number is 2 times another. Their difference is 23. What is the smaller number?
  3. 3.The sum of 4 consecutive numbers is 194. What is the largest of them?
  4. 4.One number is 3 times another. Their difference is 74. What is the smaller number?
  5. 5.The sum of 3 consecutive odd numbers is 201. What is the smallest of them?
  6. 6.One number is 4 times another. Their difference is 96. What is the smaller number?
  7. 7.The digits of a two-digit number add up to 14. When the digits swap places, the number goes up by 18. What is the number?
  8. 8.The sum of 3 consecutive odd numbers is 93. What is the largest of them?
  9. 9.The sum of 4 consecutive numbers is 42. What is the smallest of them?
  10. 10.The sum of 3 consecutive numbers is 96. What is the smallest of them?
  11. 11.The digits of a two-digit number add up to 7. When the digits swap places, the number goes up by 45. What is the number?
  12. 12.One number is 2 times another. Their difference is 28. 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 27. What is the number?
  14. 14.The sum of 4 consecutive numbers is 170. What is the largest of them?
  15. 15.The sum of 4 consecutive odd numbers is 272. What is the smallest of them?
  16. 16.The sum of 3 consecutive even numbers is 54. What is the largest of them?
  17. 17.The sum of 5 consecutive numbers is 70. What is the smallest of them?
  18. 18.The sum of 5 consecutive numbers is 120. What is the smallest of them?
  19. 19.The sum of two numbers is 111 and their difference is 37. What is the larger number?
  20. 20.The sum of 3 consecutive numbers is 93. What is the smallest of them?
  21. 21.The digits of a two-digit number add up to 13. When the digits swap places, the number goes up by 27. What is the number?
  22. 22.The sum of 3 consecutive odd numbers is 183. What is the smallest of them?
  23. 23.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?
  24. 24.The sum of 4 consecutive odd numbers is 200. What is the smallest of them?
  25. 25.The sum of two numbers is 25 and their difference is 21. What is the smaller number?
  26. 26.The sum of 3 consecutive odd numbers is 27. What is the largest of them?
  27. 27.The sum of two numbers is 62 and their difference is 42. What is the larger number?
  28. 28.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?
  29. 29.The sum of 3 consecutive numbers is 33. What is the largest of them?
  30. 30.The sum of 5 consecutive numbers is 265. What is the smallest of them?
  31. 31.The sum of two numbers is 27 and their difference is 25. What is the larger number?
  32. 32.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?
  33. 33.The sum of 3 consecutive numbers is 138. What is the smallest of them?
  34. 34.The sum of 3 consecutive odd numbers is 39. What is the largest of them?
  35. 35.The digits of a two-digit number add up to 13. When the digits swap places, the number goes up by 45. What is the number?
  36. 36.The digits of a two-digit number add up to 7. When the digits swap places, the number goes up by 9. What is the number?
  37. 37.The sum of 4 consecutive even numbers is 116. What is the largest of them?
  38. 38.The sum of two numbers is 56 and their difference is 20. What is the smaller number?
  39. 39.The sum of 5 consecutive numbers is 75. What is the smallest of them?
  40. 40.The sum of 4 consecutive odd numbers is 288. What is the smallest of them?

Answer key

  1. 53
  2. 23
  3. 50
  4. 37
  5. 65
  6. 32
  7. 68
  8. 33
  9. 9
  10. 31
  11. 16
  12. 28
  13. 36
  14. 44
  15. 65
  16. 20
  17. 12
  18. 22
  19. 74
  20. 30
  21. 58
  22. 59
  23. 89
  24. 47
  25. 2
  26. 11
  27. 52
  28. 79
  29. 12
  30. 51
  31. 26
  32. 56
  33. 45
  34. 15
  35. 49
  36. 34
  37. 32
  38. 18
  39. 13
  40. 69

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