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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 390 · 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. 1.60% of a number is 81. What is the number?
  2. 2.50% of a number is 132. What is the number?
  3. 3.10% of a number is 7. What is the number?
  4. 4.15% of a number is 6. What is the number?
  5. 5.80% of a number is 312. What is the number?
  6. 6.Sara spent ₹159, which is 60% of the pocket money. How much pocket money did Sara have, in rupees?
  7. 7.5% of a number is 9. What is the number?
  8. 8.9 is 12% of ?
  9. 9.9 is 15% of ?
  10. 10.44 is 20% of ?
  11. 11.60 is 25% of ?
  12. 12.20% of a number is 32. What is the number?
  13. 13.5% of a number is 16. What is the number?
  14. 14.113 is 50% of ?
  15. 15.75% of a number is 99. What is the number?
  16. 16.75% of a number is 294. What is the number?
  17. 17.80% of a number is 292. What is the number?
  18. 18.Dev spent ₹60, which is 20% of the pocket money. How much pocket money did Dev have, in rupees?
  19. 19.Riya spent ₹46, which is 20% of the pocket money. How much pocket money did Riya have, in rupees?
  20. 20.93 is 30% of ?
  21. 21.Ishaan spent ₹153, which is 60% of the pocket money. How much pocket money did Ishaan have, in rupees?
  22. 22.39 is 75% of ?
  23. 23.80% of a number is 264. What is the number?
  24. 24.Aarav spent ₹87, which is 30% of the pocket money. How much pocket money did Aarav have, in rupees?
  25. 25.15% of a number is 51. What is the number?
  26. 26.224 is 80% of ?
  27. 27.Kabir spent ₹2, which is 5% of the pocket money. How much pocket money did Kabir have, in rupees?
  28. 28.40% of a number is 116. What is the number?
  29. 29.Rohan spent ₹6, which is 20% of the pocket money. How much pocket money did Rohan have, in rupees?
  30. 30.15% of a number is 18. What is the number?
  31. 31.42 is 20% of ?
  32. 32.50 is 20% of ?
  33. 33.60% of a number is 108. What is the number?
  34. 34.Diya spent ₹8, which is 40% of the pocket money. How much pocket money did Diya have, in rupees?
  35. 35.Aarav spent ₹12, which is 5% of the pocket money. How much pocket money did Aarav have, in rupees?
  36. 36.Kabir spent ₹12, which is 30% of the pocket money. How much pocket money did Kabir have, in rupees?
  37. 37.126 is 75% of ?
  38. 38.50% of a number is 18. What is the number?
  39. 39.36 is 10% of ?
  40. 40.6 is 30% of ?

Answer key

  1. 135
  2. 264
  3. 70
  4. 40
  5. 390
  6. 265
  7. 180
  8. 75
  9. 60
  10. 220
  11. 240
  12. 160
  13. 320
  14. 226
  15. 132
  16. 392
  17. 365
  18. 300
  19. 230
  20. 310
  21. 255
  22. 52
  23. 330
  24. 290
  25. 340
  26. 280
  27. 40
  28. 290
  29. 30
  30. 120
  31. 210
  32. 250
  33. 180
  34. 20
  35. 240
  36. 40
  37. 168
  38. 36
  39. 360
  40. 20

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