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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 576 · 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. 1.38 is 10% of ?
  2. 2.80 is 80% of ?
  3. 3.12% of a number is 39. What is the number?
  4. 4.6 is 10% of ?
  5. 5.8 is 5% of ?
  6. 6.Isha spent ₹55, which is 25% of the pocket money. How much pocket money did Isha have, in rupees?
  7. 7.5% of a number is 18. What is the number?
  8. 8.Dev spent ₹3, which is 12% of the pocket money. How much pocket money did Dev have, in rupees?
  9. 9.57 is 20% of ?
  10. 10.12% of a number is 27. What is the number?
  11. 11.72 is 60% of ?
  12. 12.219 is 60% of ?
  13. 13.64 is 80% of ?
  14. 14.6 is 12% of ?
  15. 15.30% of a number is 114. What is the number?
  16. 16.15% of a number is 36. What is the number?
  17. 17.Isha spent ₹6, which is 20% of the pocket money. How much pocket money did Isha have, in rupees?
  18. 18.50% of a number is 78. What is the number?
  19. 19.Meera spent ₹15, which is 30% of the pocket money. How much pocket money did Meera have, in rupees?
  20. 20.5% of a number is 19. What is the number?
  21. 21.Ishaan spent ₹7, which is 5% of the pocket money. How much pocket money did Ishaan have, in rupees?
  22. 22.Diya spent ₹39, which is 12% of the pocket money. How much pocket money did Diya have, in rupees?
  23. 23.25% of a number is 71. What is the number?
  24. 24.Isha spent ₹42, which is 15% of the pocket money. How much pocket money did Isha have, in rupees?
  25. 25.Rohan spent ₹15, which is 12% of the pocket money. How much pocket money did Rohan have, in rupees?
  26. 26.15 is 15% of ?
  27. 27.Rohan spent ₹276, which is 80% of the pocket money. How much pocket money did Rohan have, in rupees?
  28. 28.25% of a number is 18. What is the number?
  29. 29.10% of a number is 2. What is the number?
  30. 30.9 is 60% of ?
  31. 31.30 is 60% of ?
  32. 32.5% of a number is 4. What is the number?
  33. 33.195 is 60% of ?
  34. 34.5% of a number is 3. What is the number?
  35. 35.81 is 75% of ?
  36. 36.Rohan spent ₹13, which is 5% of the pocket money. How much pocket money did Rohan have, in rupees?
  37. 37.38 is 40% of ?
  38. 38.20% of a number is 51. What is the number?
  39. 39.9 is 10% of ?
  40. 40.14 is 5% of ?

Answer key

  1. 380
  2. 100
  3. 325
  4. 60
  5. 160
  6. 220
  7. 360
  8. 25
  9. 285
  10. 225
  11. 120
  12. 365
  13. 80
  14. 50
  15. 380
  16. 240
  17. 30
  18. 156
  19. 50
  20. 380
  21. 140
  22. 325
  23. 284
  24. 280
  25. 125
  26. 100
  27. 345
  28. 72
  29. 20
  30. 15
  31. 50
  32. 80
  33. 325
  34. 60
  35. 108
  36. 260
  37. 95
  38. 255
  39. 90
  40. 280

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