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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 555 · 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. 1.5% of a number is 11. What is the number?
  2. 2.Arjun spent ₹86, which is 25% of the pocket money. How much pocket money did Arjun have, in rupees?
  3. 3.Kabir spent ₹63, which is 30% of the pocket money. How much pocket money did Kabir have, in rupees?
  4. 4.Ishaan spent ₹9, which is 20% of the pocket money. How much pocket money did Ishaan have, in rupees?
  5. 5.51 is 15% of ?
  6. 6.Isha spent ₹2, which is 10% of the pocket money. How much pocket money did Isha have, in rupees?
  7. 7.60% of a number is 12. What is the number?
  8. 8.50% of a number is 10. What is the number?
  9. 9.50% of a number is 108. What is the number?
  10. 10.Arjun spent ₹116, which is 40% of the pocket money. How much pocket money did Arjun have, in rupees?
  11. 11.50% of a number is 104. What is the number?
  12. 12.114 is 30% of ?
  13. 13.1 is 20% of ?
  14. 14.Anaya spent ₹186, which is 60% of the pocket money. How much pocket money did Anaya have, in rupees?
  15. 15.12% of a number is 48. What is the number?
  16. 16.144 is 75% of ?
  17. 17.10% of a number is 34. What is the number?
  18. 18.30% of a number is 93. What is the number?
  19. 19.Diya spent ₹18, which is 12% of the pocket money. How much pocket money did Diya have, in rupees?
  20. 20.3 is 15% of ?
  21. 21.Sara spent ₹12, which is 20% of the pocket money. How much pocket money did Sara have, in rupees?
  22. 22.75% of a number is 63. What is the number?
  23. 23.10% of a number is 6. What is the number?
  24. 24.Isha spent ₹54, which is 15% of the pocket money. How much pocket money did Isha have, in rupees?
  25. 25.141 is 75% of ?
  26. 26.Kabir spent ₹181, which is 50% of the pocket money. How much pocket money did Kabir have, in rupees?
  27. 27.7 is 5% of ?
  28. 28.40% of a number is 26. What is the number?
  29. 29.Diya spent ₹14, which is 10% of the pocket money. How much pocket money did Diya have, in rupees?
  30. 30.45 is 75% of ?
  31. 31.Dev spent ₹52, which is 25% of the pocket money. How much pocket money did Dev have, in rupees?
  32. 32.80% of a number is 276. What is the number?
  33. 33.Rohan spent ₹36, which is 12% of the pocket money. How much pocket money did Rohan have, in rupees?
  34. 34.Riya spent ₹42, which is 12% of the pocket money. How much pocket money did Riya have, in rupees?
  35. 35.5% of a number is 7. What is the number?
  36. 36.50% of a number is 167. What is the number?
  37. 37.54 is 25% of ?
  38. 38.25% of a number is 82. What is the number?
  39. 39.45 is 12% of ?
  40. 40.20% of a number is 71. What is the number?

Answer key

  1. 220
  2. 344
  3. 210
  4. 45
  5. 340
  6. 20
  7. 20
  8. 20
  9. 216
  10. 290
  11. 208
  12. 380
  13. 5
  14. 310
  15. 400
  16. 192
  17. 340
  18. 310
  19. 150
  20. 20
  21. 60
  22. 84
  23. 60
  24. 360
  25. 188
  26. 362
  27. 140
  28. 65
  29. 140
  30. 60
  31. 208
  32. 345
  33. 300
  34. 350
  35. 140
  36. 334
  37. 216
  38. 328
  39. 375
  40. 355

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