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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 409 · 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. 1.117 is 30% of ?
  2. 2.30% of a number is 81. What is the number?
  3. 3.27 is 12% of ?
  4. 4.40% of a number is 78. What is the number?
  5. 5.12% of a number is 12. What is the number?
  6. 6.Arjun spent ₹105, which is 30% of the pocket money. How much pocket money did Arjun have, in rupees?
  7. 7.9 is 12% of ?
  8. 8.Arjun spent ₹154, which is 40% of the pocket money. How much pocket money did Arjun have, in rupees?
  9. 9.25% of a number is 68. What is the number?
  10. 10.Anaya spent ₹48, which is 12% of the pocket money. How much pocket money did Anaya have, in rupees?
  11. 11.Meera spent ₹184, which is 80% of the pocket money. How much pocket money did Meera have, in rupees?
  12. 12.Riya spent ₹15, which is 15% of the pocket money. How much pocket money did Riya have, in rupees?
  13. 13.Diya spent ₹32, which is 80% of the pocket money. How much pocket money did Diya have, in rupees?
  14. 14.Anaya spent ₹42, which is 12% of the pocket money. How much pocket money did Anaya have, in rupees?
  15. 15.3 is 20% of ?
  16. 16.Ishaan spent ₹17, which is 10% of the pocket money. How much pocket money did Ishaan have, in rupees?
  17. 17.Aarav spent ₹1, which is 5% of the pocket money. How much pocket money did Aarav have, in rupees?
  18. 18.Anaya spent ₹129, which is 50% of the pocket money. How much pocket money did Anaya have, in rupees?
  19. 19.Dev spent ₹123, which is 50% of the pocket money. How much pocket money did Dev have, in rupees?
  20. 20.50% of a number is 96. What is the number?
  21. 21.Meera spent ₹56, which is 25% of the pocket money. How much pocket money did Meera have, in rupees?
  22. 22.20% of a number is 49. What is the number?
  23. 23.Diya spent ₹19, which is 5% of the pocket money. How much pocket money did Diya have, in rupees?
  24. 24.71 is 25% of ?
  25. 25.30% of a number is 114. What is the number?
  26. 26.30 is 12% of ?
  27. 27.66 is 60% of ?
  28. 28.17 is 20% of ?
  29. 29.Aarav spent ₹106, which is 40% of the pocket money. How much pocket money did Aarav have, in rupees?
  30. 30.80% of a number is 12. What is the number?
  31. 31.20% of a number is 53. What is the number?
  32. 32.Riya spent ₹27, which is 10% of the pocket money. How much pocket money did Riya have, in rupees?
  33. 33.50% of a number is 108. What is the number?
  34. 34.Anaya spent ₹8, which is 20% of the pocket money. How much pocket money did Anaya have, in rupees?
  35. 35.Anaya spent ₹96, which is 40% of the pocket money. How much pocket money did Anaya have, in rupees?
  36. 36.33 is 15% of ?
  37. 37.80% of a number is 4. What is the number?
  38. 38.60% of a number is 198. What is the number?
  39. 39.20 is 25% of ?
  40. 40.21 is 12% of ?

Answer key

  1. 390
  2. 270
  3. 225
  4. 195
  5. 100
  6. 350
  7. 75
  8. 385
  9. 272
  10. 400
  11. 230
  12. 100
  13. 40
  14. 350
  15. 15
  16. 170
  17. 20
  18. 258
  19. 246
  20. 192
  21. 224
  22. 245
  23. 380
  24. 284
  25. 380
  26. 250
  27. 110
  28. 85
  29. 265
  30. 15
  31. 265
  32. 270
  33. 216
  34. 40
  35. 240
  36. 220
  37. 5
  38. 330
  39. 80
  40. 175

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