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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 841 · 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. 1.20% of a number is 30. What is the number?
  2. 2.Riya spent ₹84, which is 25% of the pocket money. How much pocket money did Riya have, in rupees?
  3. 3.40% of a number is 70. What is the number?
  4. 4.16 is 25% of ?
  5. 5.Sara spent ₹71, which is 25% of the pocket money. How much pocket money did Sara have, in rupees?
  6. 6.24 is 30% of ?
  7. 7.117 is 30% of ?
  8. 8.16 is 10% of ?
  9. 9.18 is 40% of ?
  10. 10.40% of a number is 4. What is the number?
  11. 11.60% of a number is 180. What is the number?
  12. 12.75% of a number is 237. What is the number?
  13. 13.33 is 25% of ?
  14. 14.50% of a number is 18. What is the number?
  15. 15.Rohan spent ₹184, which is 50% of the pocket money. How much pocket money did Rohan have, in rupees?
  16. 16.Diya spent ₹70, which is 25% of the pocket money. How much pocket money did Diya have, in rupees?
  17. 17.172 is 80% of ?
  18. 18.Aarav spent ₹57, which is 15% of the pocket money. How much pocket money did Aarav have, in rupees?
  19. 19.Isha spent ₹37, which is 10% of the pocket money. How much pocket money did Isha have, in rupees?
  20. 20.Ishaan spent ₹74, which is 25% of the pocket money. How much pocket money did Ishaan have, in rupees?
  21. 21.Dev spent ₹56, which is 25% of the pocket money. How much pocket money did Dev have, in rupees?
  22. 22.5 is 5% of ?
  23. 23.6 is 10% of ?
  24. 24.24 is 20% of ?
  25. 25.Anaya spent ₹39, which is 15% of the pocket money. How much pocket money did Anaya have, in rupees?
  26. 26.Anaya spent ₹297, which is 75% of the pocket money. How much pocket money did Anaya have, in rupees?
  27. 27.Diya spent ₹39, which is 15% of the pocket money. How much pocket money did Diya have, in rupees?
  28. 28.17 is 5% of ?
  29. 29.50% of a number is 152. What is the number?
  30. 30.30% of a number is 3. What is the number?
  31. 31.Diya spent ₹148, which is 80% of the pocket money. How much pocket money did Diya have, in rupees?
  32. 32.Riya spent ₹96, which is 80% of the pocket money. How much pocket money did Riya have, in rupees?
  33. 33.40% of a number is 48. What is the number?
  34. 34.40% of a number is 110. What is the number?
  35. 35.Ishaan spent ₹9, which is 12% of the pocket money. How much pocket money did Ishaan have, in rupees?
  36. 36.120 is 80% of ?
  37. 37.Riya spent ₹93, which is 30% of the pocket money. How much pocket money did Riya have, in rupees?
  38. 38.Meera spent ₹44, which is 80% of the pocket money. How much pocket money did Meera have, in rupees?
  39. 39.12% of a number is 3. What is the number?
  40. 40.Anaya spent ₹11, which is 5% of the pocket money. How much pocket money did Anaya have, in rupees?

Answer key

  1. 150
  2. 336
  3. 175
  4. 64
  5. 284
  6. 80
  7. 390
  8. 160
  9. 45
  10. 10
  11. 300
  12. 316
  13. 132
  14. 36
  15. 368
  16. 280
  17. 215
  18. 380
  19. 370
  20. 296
  21. 224
  22. 100
  23. 60
  24. 120
  25. 260
  26. 396
  27. 260
  28. 340
  29. 304
  30. 10
  31. 185
  32. 120
  33. 120
  34. 275
  35. 75
  36. 150
  37. 310
  38. 55
  39. 25
  40. 220

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