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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 367 · 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. 1.25% of a number is 18. What is the number?
  2. 2.12% of a number is 36. What is the number?
  3. 3.Kabir spent ₹33, which is 12% of the pocket money. How much pocket money did Kabir have, in rupees?
  4. 4.Ishaan spent ₹27, which is 12% of the pocket money. How much pocket money did Ishaan have, in rupees?
  5. 5.10% of a number is 31. What is the number?
  6. 6.Anaya spent ₹28, which is 40% of the pocket money. How much pocket money did Anaya have, in rupees?
  7. 7.Ishaan spent ₹60, which is 15% of the pocket money. How much pocket money did Ishaan have, in rupees?
  8. 8.Kabir spent ₹201, which is 60% of the pocket money. How much pocket money did Kabir have, in rupees?
  9. 9.10% of a number is 8. What is the number?
  10. 10.49 is 25% of ?
  11. 11.12% of a number is 21. What is the number?
  12. 12.15 is 10% of ?
  13. 13.50% of a number is 154. What is the number?
  14. 14.5% of a number is 15. What is the number?
  15. 15.80% of a number is 300. What is the number?
  16. 16.Diya spent ₹87, which is 60% of the pocket money. How much pocket money did Diya have, in rupees?
  17. 17.76 is 80% of ?
  18. 18.12 is 5% of ?
  19. 19.Dev spent ₹41, which is 20% of the pocket money. How much pocket money did Dev have, in rupees?
  20. 20.Aarav spent ₹141, which is 60% of the pocket money. How much pocket money did Aarav have, in rupees?
  21. 21.Sara spent ₹6, which is 30% of the pocket money. How much pocket money did Sara have, in rupees?
  22. 22.5% of a number is 18. What is the number?
  23. 23.Aarav spent ₹48, which is 15% of the pocket money. How much pocket money did Aarav have, in rupees?
  24. 24.80% of a number is 184. What is the number?
  25. 25.19 is 50% of ?
  26. 26.Sara spent ₹24, which is 30% of the pocket money. How much pocket money did Sara have, in rupees?
  27. 27.Kabir spent ₹18, which is 40% of the pocket money. How much pocket money did Kabir have, in rupees?
  28. 28.Isha spent ₹100, which is 40% of the pocket money. How much pocket money did Isha have, in rupees?
  29. 29.15% of a number is 39. What is the number?
  30. 30.60% of a number is 81. What is the number?
  31. 31.32 is 10% of ?
  32. 32.Dev spent ₹117, which is 30% of the pocket money. How much pocket money did Dev have, in rupees?
  33. 33.Arjun spent ₹35, which is 20% of the pocket money. How much pocket money did Arjun have, in rupees?
  34. 34.22 is 10% of ?
  35. 35.75% of a number is 288. What is the number?
  36. 36.180 is 75% of ?
  37. 37.3 is 10% of ?
  38. 38.5% of a number is 7. What is the number?
  39. 39.27 is 15% of ?
  40. 40.Rohan spent ₹4, which is 5% of the pocket money. How much pocket money did Rohan have, in rupees?

Answer key

  1. 72
  2. 300
  3. 275
  4. 225
  5. 310
  6. 70
  7. 400
  8. 335
  9. 80
  10. 196
  11. 175
  12. 150
  13. 308
  14. 300
  15. 375
  16. 145
  17. 95
  18. 240
  19. 205
  20. 235
  21. 20
  22. 360
  23. 320
  24. 230
  25. 38
  26. 80
  27. 45
  28. 250
  29. 260
  30. 135
  31. 320
  32. 390
  33. 175
  34. 220
  35. 384
  36. 240
  37. 30
  38. 140
  39. 180
  40. 80

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