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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 880 · 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.Riya spent ₹6, which is 12% of the pocket money. How much pocket money did Riya have, in rupees?
  2. 2.Sara spent ₹80, which is 20% of the pocket money. How much pocket money did Sara have, in rupees?
  3. 3.42 is 30% of ?
  4. 4.Isha spent ₹9, which is 5% of the pocket money. How much pocket money did Isha have, in rupees?
  5. 5.5% of a number is 5. What is the number?
  6. 6.12% of a number is 33. What is the number?
  7. 7.Riya spent ₹80, which is 80% of the pocket money. How much pocket money did Riya have, in rupees?
  8. 8.50% of a number is 31. What is the number?
  9. 9.81 is 60% of ?
  10. 10.37 is 10% of ?
  11. 11.Rohan spent ₹42, which is 75% of the pocket money. How much pocket money did Rohan have, in rupees?
  12. 12.50% of a number is 98. What is the number?
  13. 13.Riya spent ₹135, which is 50% of the pocket money. How much pocket money did Riya have, in rupees?
  14. 14.12% of a number is 24. What is the number?
  15. 15.80% of a number is 80. What is the number?
  16. 16.Kabir spent ₹35, which is 25% of the pocket money. How much pocket money did Kabir have, in rupees?
  17. 17.15% of a number is 9. What is the number?
  18. 18.30% of a number is 90. What is the number?
  19. 19.Diya spent ₹74, which is 40% of the pocket money. How much pocket money did Diya have, in rupees?
  20. 20.5% of a number is 4. What is the number?
  21. 21.Sara spent ₹39, which is 10% of the pocket money. How much pocket money did Sara have, in rupees?
  22. 22.17 is 10% of ?
  23. 23.60% of a number is 75. What is the number?
  24. 24.11 is 20% of ?
  25. 25.80% of a number is 148. What is the number?
  26. 26.66 is 20% of ?
  27. 27.75% of a number is 72. What is the number?
  28. 28.8 is 50% of ?
  29. 29.158 is 50% of ?
  30. 30.50% of a number is 11. What is the number?
  31. 31.Dev spent ₹15, which is 30% of the pocket money. How much pocket money did Dev have, in rupees?
  32. 32.1 is 10% of ?
  33. 33.30% of a number is 12. What is the number?
  34. 34.Dev spent ₹1, which is 5% of the pocket money. How much pocket money did Dev have, in rupees?
  35. 35.Meera spent ₹12, which is 15% of the pocket money. How much pocket money did Meera have, in rupees?
  36. 36.80% of a number is 212. What is the number?
  37. 37.Diya spent ₹36, which is 20% of the pocket money. How much pocket money did Diya have, in rupees?
  38. 38.20 is 25% of ?
  39. 39.Arjun spent ₹21, which is 10% of the pocket money. How much pocket money did Arjun have, in rupees?
  40. 40.Sara spent ₹52, which is 80% of the pocket money. How much pocket money did Sara have, in rupees?

Answer key

  1. 50
  2. 400
  3. 140
  4. 180
  5. 100
  6. 275
  7. 100
  8. 62
  9. 135
  10. 370
  11. 56
  12. 196
  13. 270
  14. 200
  15. 100
  16. 140
  17. 60
  18. 300
  19. 185
  20. 80
  21. 390
  22. 170
  23. 125
  24. 55
  25. 185
  26. 330
  27. 96
  28. 16
  29. 316
  30. 22
  31. 50
  32. 10
  33. 40
  34. 20
  35. 80
  36. 265
  37. 180
  38. 80
  39. 210
  40. 65

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