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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 199 · 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.

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  1. 1.Riya spent ₹36, which is 40% of the pocket money. How much pocket money did Riya have, in rupees?
  2. 2.20% of a number is 21. What is the number?
  3. 3.60% of a number is 51. What is the number?
  4. 4.Anaya spent ₹112, which is 80% of the pocket money. How much pocket money did Anaya have, in rupees?
  5. 5.80% of a number is 176. What is the number?
  6. 6.75% of a number is 297. What is the number?
  7. 7.15% of a number is 18. What is the number?
  8. 8.18 is 30% of ?
  9. 9.45 is 30% of ?
  10. 10.20% of a number is 1. What is the number?
  11. 11.104 is 80% of ?
  12. 12.75% of a number is 156. What is the number?
  13. 13.Meera spent ₹12, which is 5% of the pocket money. How much pocket money did Meera have, in rupees?
  14. 14.Rohan spent ₹22, which is 20% of the pocket money. How much pocket money did Rohan have, in rupees?
  15. 15.80% of a number is 228. What is the number?
  16. 16.18 is 20% of ?
  17. 17.Aarav spent ₹24, which is 30% of the pocket money. How much pocket money did Aarav have, in rupees?
  18. 18.25% of a number is 58. What is the number?
  19. 19.81 is 30% of ?
  20. 20.30% of a number is 120. What is the number?
  21. 21.15% of a number is 30. What is the number?
  22. 22.39 is 75% of ?
  23. 23.75 is 20% of ?
  24. 24.Arjun spent ₹4, which is 80% of the pocket money. How much pocket money did Arjun have, in rupees?
  25. 25.48 is 12% of ?
  26. 26.195 is 75% of ?
  27. 27.9 is 20% of ?
  28. 28.33 is 12% of ?
  29. 29.72 is 50% of ?
  30. 30.155 is 50% of ?
  31. 31.Arjun spent ₹26, which is 25% of the pocket money. How much pocket money did Arjun have, in rupees?
  32. 32.24 is 15% of ?
  33. 33.Dev spent ₹29, which is 25% of the pocket money. How much pocket money did Dev have, in rupees?
  34. 34.10% of a number is 6. What is the number?
  35. 35.Kabir spent ₹29, which is 25% of the pocket money. How much pocket money did Kabir have, in rupees?
  36. 36.5% of a number is 9. What is the number?
  37. 37.90 is 40% of ?
  38. 38.Arjun spent ₹20, which is 5% of the pocket money. How much pocket money did Arjun have, in rupees?
  39. 39.3 is 30% of ?
  40. 40.20% of a number is 54. What is the number?

Answer key

  1. 90
  2. 105
  3. 85
  4. 140
  5. 220
  6. 396
  7. 120
  8. 60
  9. 150
  10. 5
  11. 130
  12. 208
  13. 240
  14. 110
  15. 285
  16. 90
  17. 80
  18. 232
  19. 270
  20. 400
  21. 200
  22. 52
  23. 375
  24. 5
  25. 400
  26. 260
  27. 45
  28. 275
  29. 144
  30. 310
  31. 104
  32. 160
  33. 116
  34. 60
  35. 116
  36. 180
  37. 225
  38. 400
  39. 10
  40. 270

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