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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 110 · 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.Dev spent ₹32, which is 40% of the pocket money. How much pocket money did Dev have, in rupees?
  2. 2.10% of a number is 8. What is the number?
  3. 3.10% of a number is 1. What is the number?
  4. 4.Diya spent ₹18, which is 30% of the pocket money. How much pocket money did Diya have, in rupees?
  5. 5.Riya spent ₹42, which is 40% of the pocket money. How much pocket money did Riya have, in rupees?
  6. 6.12% of a number is 15. What is the number?
  7. 7.40% of a number is 16. What is the number?
  8. 8.Isha spent ₹66, which is 30% of the pocket money. How much pocket money did Isha have, in rupees?
  9. 9.80% of a number is 308. What is the number?
  10. 10.67 is 50% of ?
  11. 11.60 is 15% of ?
  12. 12.60% of a number is 228. What is the number?
  13. 13.Anaya spent ₹15, which is 5% of the pocket money. How much pocket money did Anaya have, in rupees?
  14. 14.Ishaan spent ₹43, which is 20% of the pocket money. How much pocket money did Ishaan have, in rupees?
  15. 15.80% of a number is 260. What is the number?
  16. 16.10% of a number is 2. What is the number?
  17. 17.Ishaan spent ₹128, which is 50% of the pocket money. How much pocket money did Ishaan have, in rupees?
  18. 18.60% of a number is 30. What is the number?
  19. 19.Riya spent ₹89, which is 25% of the pocket money. How much pocket money did Riya have, in rupees?
  20. 20.5% of a number is 10. What is the number?
  21. 21.17 is 20% of ?
  22. 22.10% of a number is 28. What is the number?
  23. 23.126 is 60% of ?
  24. 24.24 is 80% of ?
  25. 25.30% of a number is 99. What is the number?
  26. 26.38 is 20% of ?
  27. 27.5% of a number is 6. What is the number?
  28. 28.25% of a number is 48. What is the number?
  29. 29.Kabir spent ₹291, which is 75% of the pocket money. How much pocket money did Kabir have, in rupees?
  30. 30.25% of a number is 52. What is the number?
  31. 31.160 is 40% of ?
  32. 32.5% of a number is 2. What is the number?
  33. 33.31 is 10% of ?
  34. 34.171 is 60% of ?
  35. 35.50% of a number is 48. What is the number?
  36. 36.5% of a number is 4. What is the number?
  37. 37.6 is 12% of ?
  38. 38.Arjun spent ₹12, which is 25% of the pocket money. How much pocket money did Arjun have, in rupees?
  39. 39.40% of a number is 68. What is the number?
  40. 40.52 is 80% of ?

Answer key

  1. 80
  2. 80
  3. 10
  4. 60
  5. 105
  6. 125
  7. 40
  8. 220
  9. 385
  10. 134
  11. 400
  12. 380
  13. 300
  14. 215
  15. 325
  16. 20
  17. 256
  18. 50
  19. 356
  20. 200
  21. 85
  22. 280
  23. 210
  24. 30
  25. 330
  26. 190
  27. 120
  28. 192
  29. 388
  30. 208
  31. 400
  32. 40
  33. 310
  34. 285
  35. 96
  36. 80
  37. 50
  38. 48
  39. 170
  40. 65

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