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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 100 · 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. 1.138 is 40% of ?
  2. 2.75% of a number is 228. What is the number?
  3. 3.25% of a number is 69. What is the number?
  4. 4.12 is 15% of ?
  5. 5.83 is 25% of ?
  6. 6.20% of a number is 49. What is the number?
  7. 7.Rohan spent ₹20, which is 10% of the pocket money. How much pocket money did Rohan have, in rupees?
  8. 8.60% of a number is 183. What is the number?
  9. 9.Sara spent ₹30, which is 12% of the pocket money. How much pocket money did Sara have, in rupees?
  10. 10.80% of a number is 264. What is the number?
  11. 11.92 is 40% of ?
  12. 12.Riya spent ₹13, which is 20% of the pocket money. How much pocket money did Riya have, in rupees?
  13. 13.10% of a number is 2. What is the number?
  14. 14.5% of a number is 19. What is the number?
  15. 15.10% of a number is 29. What is the number?
  16. 16.Diya spent ₹30, which is 20% of the pocket money. How much pocket money did Diya have, in rupees?
  17. 17.Meera spent ₹15, which is 10% of the pocket money. How much pocket money did Meera have, in rupees?
  18. 18.75% of a number is 123. What is the number?
  19. 19.81 is 30% of ?
  20. 20.234 is 60% of ?
  21. 21.Isha spent ₹237, which is 60% of the pocket money. How much pocket money did Isha have, in rupees?
  22. 22.20% of a number is 63. What is the number?
  23. 23.40% of a number is 132. What is the number?
  24. 24.62 is 25% of ?
  25. 25.Arjun spent ₹69, which is 20% of the pocket money. How much pocket money did Arjun have, in rupees?
  26. 26.Isha spent ₹16, which is 5% of the pocket money. How much pocket money did Isha have, in rupees?
  27. 27.60% of a number is 123. What is the number?
  28. 28.Riya spent ₹57, which is 25% of the pocket money. How much pocket money did Riya have, in rupees?
  29. 29.10% of a number is 27. What is the number?
  30. 30.12% of a number is 36. What is the number?
  31. 31.33 is 20% of ?
  32. 32.Meera spent ₹173, which is 50% of the pocket money. How much pocket money did Meera have, in rupees?
  33. 33.9 is 10% of ?
  34. 34.12 is 40% of ?
  35. 35.7 is 5% of ?
  36. 36.44 is 40% of ?
  37. 37.50% of a number is 10. What is the number?
  38. 38.Aarav spent ₹84, which is 40% of the pocket money. How much pocket money did Aarav have, in rupees?
  39. 39.Riya spent ₹24, which is 10% of the pocket money. How much pocket money did Riya have, in rupees?
  40. 40.15% of a number is 3. What is the number?

Answer key

  1. 345
  2. 304
  3. 276
  4. 80
  5. 332
  6. 245
  7. 200
  8. 305
  9. 250
  10. 330
  11. 230
  12. 65
  13. 20
  14. 380
  15. 290
  16. 150
  17. 150
  18. 164
  19. 270
  20. 390
  21. 395
  22. 315
  23. 330
  24. 248
  25. 345
  26. 320
  27. 205
  28. 228
  29. 270
  30. 300
  31. 165
  32. 346
  33. 90
  34. 30
  35. 140
  36. 110
  37. 20
  38. 210
  39. 240
  40. 20

Free percentage lessons, practice and worksheets at talentjr.in/how-to-calculate-percentage