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Percentage lesson 9: Find the whole from a percent · Set 975 · 40 questions
TalentJR

How to work it out (Back to 100%): Write what you know: p% is a. The whole (100%) = a × 100 ÷ p. Check: p% of your answer must give a back.

NameDateTime takenScore ___ / 40
  1. 1.Aarav spent ₹244, which is 80% of the pocket money. How much pocket money did Aarav have, in rupees?
  2. 2.Riya spent ₹7, which is 5% of the pocket money. How much pocket money did Riya have, in rupees?
  3. 3.70 is 40% of ?
  4. 4.Meera spent ₹12, which is 5% of the pocket money. How much pocket money did Meera have, in rupees?
  5. 5.17 is 10% of ?
  6. 6.45 is 20% of ?
  7. 7.21 is 50% of ?
  8. 8.5% of a number is 7. What is the number?
  9. 9.Kabir spent ₹6, which is 15% of the pocket money. How much pocket money did Kabir have, in rupees?
  10. 10.81 is 50% of ?
  11. 11.Meera spent ₹23, which is 20% of the pocket money. How much pocket money did Meera have, in rupees?
  12. 12.33 is 15% of ?
  13. 13.20% of a number is 1. What is the number?
  14. 14.20% of a number is 13. What is the number?
  15. 15.Arjun spent ₹44, which is 20% of the pocket money. How much pocket money did Arjun have, in rupees?
  16. 16.10% of a number is 39. What is the number?
  17. 17.156 is 75% of ?
  18. 18.Aarav spent ₹1, which is 20% of the pocket money. How much pocket money did Aarav have, in rupees?
  19. 19.75% of a number is 66. What is the number?
  20. 20.25% of a number is 92. What is the number?
  21. 21.9 is 15% of ?
  22. 22.10% of a number is 9. What is the number?
  23. 23.25% of a number is 70. What is the number?
  24. 24.Kabir spent ₹18, which is 12% of the pocket money. How much pocket money did Kabir have, in rupees?
  25. 25.Ishaan spent ₹154, which is 50% of the pocket money. How much pocket money did Ishaan have, in rupees?
  26. 26.50% of a number is 159. What is the number?
  27. 27.5% of a number is 12. What is the number?
  28. 28.300 is 75% of ?
  29. 29.9 is 12% of ?
  30. 30.40% of a number is 74. What is the number?
  31. 31.Diya spent ₹140, which is 80% of the pocket money. How much pocket money did Diya have, in rupees?
  32. 32.Isha spent ₹27, which is 20% of the pocket money. How much pocket money did Isha have, in rupees?
  33. 33.Sara spent ₹27, which is 15% of the pocket money. How much pocket money did Sara have, in rupees?
  34. 34.102 is 50% of ?
  35. 35.40% of a number is 2. What is the number?
  36. 36.Sara spent ₹84, which is 80% of the pocket money. How much pocket money did Sara have, in rupees?
  37. 37.68 is 80% of ?
  38. 38.30% of a number is 99. What is the number?
  39. 39.Meera spent ₹6, which is 25% of the pocket money. How much pocket money did Meera have, in rupees?
  40. 40.20% of a number is 51. What is the number?

Answer key

  1. 305
  2. 140
  3. 175
  4. 240
  5. 170
  6. 225
  7. 42
  8. 140
  9. 40
  10. 162
  11. 115
  12. 220
  13. 5
  14. 65
  15. 220
  16. 390
  17. 208
  18. 5
  19. 88
  20. 368
  21. 60
  22. 90
  23. 280
  24. 150
  25. 308
  26. 318
  27. 240
  28. 400
  29. 75
  30. 185
  31. 175
  32. 135
  33. 180
  34. 204
  35. 5
  36. 105
  37. 85
  38. 330
  39. 24
  40. 255

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