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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 112 · 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. 1.15 is 15% of ?
  2. 2.216 is 80% of ?
  3. 3.50% of a number is 193. What is the number?
  4. 4.5% of a number is 17. What is the number?
  5. 5.240 is 75% of ?
  6. 6.Sara spent ₹15, which is 15% of the pocket money. How much pocket money did Sara have, in rupees?
  7. 7.Diya spent ₹108, which is 50% of the pocket money. How much pocket money did Diya have, in rupees?
  8. 8.Ishaan spent ₹54, which is 25% of the pocket money. How much pocket money did Ishaan have, in rupees?
  9. 9.50% of a number is 109. What is the number?
  10. 10.25% of a number is 67. What is the number?
  11. 11.164 is 80% of ?
  12. 12.267 is 75% of ?
  13. 13.Aarav spent ₹33, which is 12% of the pocket money. How much pocket money did Aarav have, in rupees?
  14. 14.Aarav spent ₹22, which is 25% of the pocket money. How much pocket money did Aarav have, in rupees?
  15. 15.50% of a number is 77. What is the number?
  16. 16.Anaya spent ₹54, which is 30% of the pocket money. How much pocket money did Anaya have, in rupees?
  17. 17.Isha spent ₹87, which is 60% of the pocket money. How much pocket money did Isha have, in rupees?
  18. 18.21 is 20% of ?
  19. 19.300 is 80% of ?
  20. 20.64 is 50% of ?
  21. 21.20% of a number is 5. What is the number?
  22. 22.Diya spent ₹24, which is 25% of the pocket money. How much pocket money did Diya have, in rupees?
  23. 23.30% of a number is 60. What is the number?
  24. 24.50% of a number is 151. What is the number?
  25. 25.40% of a number is 36. What is the number?
  26. 26.Meera spent ₹136, which is 80% of the pocket money. How much pocket money did Meera have, in rupees?
  27. 27.2 is 5% of ?
  28. 28.Arjun spent ₹57, which is 15% of the pocket money. How much pocket money did Arjun have, in rupees?
  29. 29.Anaya spent ₹13, which is 5% of the pocket money. How much pocket money did Anaya have, in rupees?
  30. 30.Riya spent ₹77, which is 20% of the pocket money. How much pocket money did Riya have, in rupees?
  31. 31.20% of a number is 9. What is the number?
  32. 32.76 is 20% of ?
  33. 33.Anaya spent ₹2, which is 20% of the pocket money. How much pocket money did Anaya have, in rupees?
  34. 34.Anaya spent ₹42, which is 15% of the pocket money. How much pocket money did Anaya have, in rupees?
  35. 35.Riya spent ₹49, which is 25% of the pocket money. How much pocket money did Riya have, in rupees?
  36. 36.30% of a number is 66. What is the number?
  37. 37.Aarav spent ₹172, which is 80% of the pocket money. How much pocket money did Aarav have, in rupees?
  38. 38.Anaya spent ₹35, which is 10% of the pocket money. How much pocket money did Anaya have, in rupees?
  39. 39.146 is 50% of ?
  40. 40.120 is 60% of ?

Answer key

  1. 100
  2. 270
  3. 386
  4. 340
  5. 320
  6. 100
  7. 216
  8. 216
  9. 218
  10. 268
  11. 205
  12. 356
  13. 275
  14. 88
  15. 154
  16. 180
  17. 145
  18. 105
  19. 375
  20. 128
  21. 25
  22. 96
  23. 200
  24. 302
  25. 90
  26. 170
  27. 40
  28. 380
  29. 260
  30. 385
  31. 45
  32. 380
  33. 10
  34. 280
  35. 196
  36. 220
  37. 215
  38. 350
  39. 292
  40. 200

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