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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 798 · 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 27. What is the number?
  2. 2.Ishaan spent ₹138, which is 60% of the pocket money. How much pocket money did Ishaan have, in rupees?
  3. 3.10 is 5% of ?
  4. 4.Ishaan spent ₹42, which is 12% of the pocket money. How much pocket money did Ishaan have, in rupees?
  5. 5.50% of a number is 166. What is the number?
  6. 6.6 is 15% of ?
  7. 7.50% of a number is 100. What is the number?
  8. 8.Anaya spent ₹224, which is 80% of the pocket money. How much pocket money did Anaya have, in rupees?
  9. 9.50% of a number is 94. What is the number?
  10. 10.Anaya spent ₹174, which is 60% of the pocket money. How much pocket money did Anaya have, in rupees?
  11. 11.Ishaan spent ₹255, which is 75% of the pocket money. How much pocket money did Ishaan have, in rupees?
  12. 12.10% of a number is 26. What is the number?
  13. 13.Rohan spent ₹10, which is 20% of the pocket money. How much pocket money did Rohan have, in rupees?
  14. 14.40% of a number is 34. What is the number?
  15. 15.51 is 15% of ?
  16. 16.5% of a number is 3. What is the number?
  17. 17.Arjun spent ₹122, which is 50% of the pocket money. How much pocket money did Arjun have, in rupees?
  18. 18.20% of a number is 75. What is the number?
  19. 19.20% of a number is 8. What is the number?
  20. 20.60% of a number is 135. What is the number?
  21. 21.168 is 80% of ?
  22. 22.Sara spent ₹74, which is 20% of the pocket money. How much pocket money did Sara have, in rupees?
  23. 23.Ishaan spent ₹46, which is 25% of the pocket money. How much pocket money did Ishaan have, in rupees?
  24. 24.68 is 80% of ?
  25. 25.Rohan spent ₹67, which is 20% of the pocket money. How much pocket money did Rohan have, in rupees?
  26. 26.180 is 60% of ?
  27. 27.Aarav spent ₹90, which is 30% of the pocket money. How much pocket money did Aarav have, in rupees?
  28. 28.Rohan spent ₹12, which is 15% of the pocket money. How much pocket money did Rohan have, in rupees?
  29. 29.12% of a number is 21. What is the number?
  30. 30.Riya spent ₹85, which is 50% of the pocket money. How much pocket money did Riya have, in rupees?
  31. 31.Arjun spent ₹1, which is 10% of the pocket money. How much pocket money did Arjun have, in rupees?
  32. 32.60% of a number is 105. What is the number?
  33. 33.Arjun spent ₹15, which is 12% of the pocket money. How much pocket money did Arjun have, in rupees?
  34. 34.Meera spent ₹29, which is 50% of the pocket money. How much pocket money did Meera have, in rupees?
  35. 35.Sara spent ₹117, which is 30% of the pocket money. How much pocket money did Sara have, in rupees?
  36. 36.20% of a number is 3. What is the number?
  37. 37.30% of a number is 42. What is the number?
  38. 38.80% of a number is 4. What is the number?
  39. 39.28 is 25% of ?
  40. 40.10% of a number is 34. What is the number?

Answer key

  1. 36
  2. 230
  3. 200
  4. 350
  5. 332
  6. 40
  7. 200
  8. 280
  9. 188
  10. 290
  11. 340
  12. 260
  13. 50
  14. 85
  15. 340
  16. 60
  17. 244
  18. 375
  19. 40
  20. 225
  21. 210
  22. 370
  23. 184
  24. 85
  25. 335
  26. 300
  27. 300
  28. 80
  29. 175
  30. 170
  31. 10
  32. 175
  33. 125
  34. 58
  35. 390
  36. 15
  37. 140
  38. 5
  39. 112
  40. 340

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