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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 160 · 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. 1.75% of a number is 231. What is the number?
  2. 2.Isha spent ₹17, which is 20% of the pocket money. How much pocket money did Isha have, in rupees?
  3. 3.10% of a number is 14. What is the number?
  4. 4.176 is 80% of ?
  5. 5.Ishaan spent ₹138, which is 40% of the pocket money. How much pocket money did Ishaan have, in rupees?
  6. 6.Dev spent ₹2, which is 25% of the pocket money. How much pocket money did Dev have, in rupees?
  7. 7.Aarav spent ₹52, which is 20% of the pocket money. How much pocket money did Aarav have, in rupees?
  8. 8.Riya spent ₹89, which is 25% of the pocket money. How much pocket money did Riya have, in rupees?
  9. 9.Kabir spent ₹5, which is 10% of the pocket money. How much pocket money did Kabir have, in rupees?
  10. 10.Ishaan spent ₹320, which is 80% of the pocket money. How much pocket money did Ishaan have, in rupees?
  11. 11.Riya spent ₹25, which is 25% of the pocket money. How much pocket money did Riya have, in rupees?
  12. 12.158 is 50% of ?
  13. 13.30% of a number is 93. What is the number?
  14. 14.60% of a number is 18. What is the number?
  15. 15.Aarav spent ₹45, which is 15% of the pocket money. How much pocket money did Aarav have, in rupees?
  16. 16.67 is 50% of ?
  17. 17.15% of a number is 27. What is the number?
  18. 18.5% of a number is 14. What is the number?
  19. 19.284 is 80% of ?
  20. 20.34 is 50% of ?
  21. 21.Riya spent ₹21, which is 25% of the pocket money. How much pocket money did Riya have, in rupees?
  22. 22.12% of a number is 6. What is the number?
  23. 23.25% of a number is 91. What is the number?
  24. 24.Anaya spent ₹15, which is 20% of the pocket money. How much pocket money did Anaya have, in rupees?
  25. 25.20% of a number is 7. What is the number?
  26. 26.Rohan spent ₹28, which is 40% of the pocket money. How much pocket money did Rohan have, in rupees?
  27. 27.50% of a number is 74. What is the number?
  28. 28.Aarav spent ₹148, which is 40% of the pocket money. How much pocket money did Aarav have, in rupees?
  29. 29.102 is 40% of ?
  30. 30.80% of a number is 168. What is the number?
  31. 31.60% of a number is 231. What is the number?
  32. 32.25% of a number is 30. What is the number?
  33. 33.Kabir spent ₹9, which is 12% of the pocket money. How much pocket money did Kabir have, in rupees?
  34. 34.Meera spent ₹87, which is 25% of the pocket money. How much pocket money did Meera have, in rupees?
  35. 35.3 is 12% of ?
  36. 36.15% of a number is 36. What is the number?
  37. 37.50% of a number is 155. What is the number?
  38. 38.12% of a number is 3. What is the number?
  39. 39.42 is 40% of ?
  40. 40.150 is 75% of ?

Answer key

  1. 308
  2. 85
  3. 140
  4. 220
  5. 345
  6. 8
  7. 260
  8. 356
  9. 50
  10. 400
  11. 100
  12. 316
  13. 310
  14. 30
  15. 300
  16. 134
  17. 180
  18. 280
  19. 355
  20. 68
  21. 84
  22. 50
  23. 364
  24. 75
  25. 35
  26. 70
  27. 148
  28. 370
  29. 255
  30. 210
  31. 385
  32. 120
  33. 75
  34. 348
  35. 25
  36. 240
  37. 310
  38. 25
  39. 105
  40. 200

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