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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 641 · 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. 1.8 is 80% of ?
  2. 2.276 is 75% of ?
  3. 3.25% of a number is 5. What is the number?
  4. 4.9 is 10% of ?
  5. 5.80% of a number is 72. What is the number?
  6. 6.Isha spent ₹3, which is 25% of the pocket money. How much pocket money did Isha have, in rupees?
  7. 7.157 is 50% of ?
  8. 8.Dev spent ₹40, which is 80% of the pocket money. How much pocket money did Dev have, in rupees?
  9. 9.41 is 20% of ?
  10. 10.30% of a number is 6. What is the number?
  11. 11.Aarav spent ₹12, which is 10% of the pocket money. How much pocket money did Aarav have, in rupees?
  12. 12.60% of a number is 126. What is the number?
  13. 13.141 is 75% of ?
  14. 14.111 is 30% of ?
  15. 15.Meera spent ₹6, which is 12% of the pocket money. How much pocket money did Meera have, in rupees?
  16. 16.5% of a number is 3. What is the number?
  17. 17.Kabir spent ₹25, which is 50% of the pocket money. How much pocket money did Kabir have, in rupees?
  18. 18.Rohan spent ₹164, which is 80% of the pocket money. How much pocket money did Rohan have, in rupees?
  19. 19.30% of a number is 36. What is the number?
  20. 20.Isha spent ₹52, which is 40% of the pocket money. How much pocket money did Isha have, in rupees?
  21. 21.187 is 50% of ?
  22. 22.20% of a number is 37. What is the number?
  23. 23.60% of a number is 234. What is the number?
  24. 24.Riya spent ₹31, which is 10% of the pocket money. How much pocket money did Riya have, in rupees?
  25. 25.48 is 12% of ?
  26. 26.30% of a number is 24. What is the number?
  27. 27.Arjun spent ₹304, which is 80% of the pocket money. How much pocket money did Arjun have, in rupees?
  28. 28.141 is 60% of ?
  29. 29.80% of a number is 148. What is the number?
  30. 30.20 is 10% of ?
  31. 31.10% of a number is 40. What is the number?
  32. 32.Anaya spent ₹90, which is 40% of the pocket money. How much pocket money did Anaya have, in rupees?
  33. 33.25% of a number is 12. What is the number?
  34. 34.30 is 12% of ?
  35. 35.Sara spent ₹10, which is 25% of the pocket money. How much pocket money did Sara have, in rupees?
  36. 36.40% of a number is 38. What is the number?
  37. 37.14 is 5% of ?
  38. 38.81 is 30% of ?
  39. 39.166 is 50% of ?
  40. 40.1 is 5% of ?

Answer key

  1. 10
  2. 368
  3. 20
  4. 90
  5. 90
  6. 12
  7. 314
  8. 50
  9. 205
  10. 20
  11. 120
  12. 210
  13. 188
  14. 370
  15. 50
  16. 60
  17. 50
  18. 205
  19. 120
  20. 130
  21. 374
  22. 185
  23. 390
  24. 310
  25. 400
  26. 80
  27. 380
  28. 235
  29. 185
  30. 200
  31. 400
  32. 225
  33. 48
  34. 250
  35. 40
  36. 95
  37. 280
  38. 270
  39. 332
  40. 20

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