← Number problems lesson New set →

Number Problems Worksheet

Quantitative aptitude lesson 27: Number problems · Set 200 · 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 222. What is the smallest of them?
  2. 2.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?
  3. 3.The sum of two numbers is 49 and their difference is 25. What is the larger number?
  4. 4.The sum of 3 consecutive numbers is 96. What is the smallest of them?
  5. 5.The sum of 4 consecutive odd numbers is 88. What is the smallest of them?
  6. 6.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?
  7. 7.The sum of two numbers is 42 and their difference is 40. What is the smaller number?
  8. 8.One number is 3 times another. Their difference is 12. What is the smaller number?
  9. 9.The sum of 4 consecutive numbers is 94. What is the largest of them?
  10. 10.The sum of 4 consecutive even numbers is 100. What is the largest of them?
  11. 11.The sum of 4 consecutive odd numbers is 104. What is the smallest of them?
  12. 12.The sum of 3 consecutive odd numbers is 117. What is the smallest of them?
  13. 13.The sum of 4 consecutive numbers is 246. What is the largest of them?
  14. 14.The sum of 5 consecutive numbers is 240. What is the smallest of them?
  15. 15.The sum of 3 consecutive even numbers is 210. What is the largest of them?
  16. 16.The sum of two numbers is 148 and their difference is 12. What is the smaller number?
  17. 17.The sum of 4 consecutive odd numbers is 232. What is the largest of them?
  18. 18.The sum of two numbers is 29 and their difference is 9. What is the smaller number?
  19. 19.One number is 2 times another. Their difference is 16. What is the smaller number?
  20. 20.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?
  21. 21.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?
  22. 22.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?
  23. 23.The sum of two numbers is 46 and their difference is 34. What is the larger number?
  24. 24.The sum of 5 consecutive numbers is 175. What is the largest of them?
  25. 25.One number is 2 times another. Their difference is 12. What is the smaller number?
  26. 26.The sum of 3 consecutive odd numbers is 99. What is the smallest of them?
  27. 27.The digits of a two-digit number add up to 8. When the digits swap places, the number goes up by 54. What is the number?
  28. 28.The sum of 3 consecutive numbers is 57. What is the largest of them?
  29. 29.The sum of 3 consecutive even numbers is 54. What is the smallest of them?
  30. 30.One number is 4 times another. Their difference is 105. What is the smaller number?
  31. 31.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?
  32. 32.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?
  33. 33.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?
  34. 34.The sum of two numbers is 149 and their difference is 43. What is the larger number?
  35. 35.The sum of two numbers is 70 and their difference is 2. What is the larger number?
  36. 36.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?
  37. 37.One number is 4 times another. Their difference is 18. What is the smaller number?
  38. 38.The sum of 3 consecutive numbers is 69. What is the largest of them?
  39. 39.The sum of two numbers is 98 and their difference is 20. What is the larger number?
  40. 40.The sum of two numbers is 147 and their difference is 19. What is the smaller number?

Answer key

  1. 54
  2. 78
  3. 37
  4. 31
  5. 19
  6. 89
  7. 1
  8. 6
  9. 25
  10. 28
  11. 23
  12. 37
  13. 63
  14. 46
  15. 72
  16. 68
  17. 61
  18. 10
  19. 16
  20. 69
  21. 79
  22. 38
  23. 40
  24. 37
  25. 12
  26. 31
  27. 17
  28. 20
  29. 16
  30. 35
  31. 56
  32. 57
  33. 67
  34. 96
  35. 36
  36. 45
  37. 6
  38. 24
  39. 59
  40. 64

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