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Percentage lesson 9: Find the whole from a percent · Set 522 · 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.Kabir spent ₹243, which is 75% of the pocket money. How much pocket money did Kabir have, in rupees?
  2. 2.40% of a number is 158. What is the number?
  3. 3.10% of a number is 1. What is the number?
  4. 4.39 is 12% of ?
  5. 5.Riya spent ₹65, which is 50% of the pocket money. How much pocket money did Riya have, in rupees?
  6. 6.5% of a number is 3. What is the number?
  7. 7.10 is 25% of ?
  8. 8.Sara spent ₹81, which is 25% of the pocket money. How much pocket money did Sara have, in rupees?
  9. 9.Meera spent ₹34, which is 10% of the pocket money. How much pocket money did Meera have, in rupees?
  10. 10.21 is 10% of ?
  11. 11.Rohan spent ₹77, which is 20% of the pocket money. How much pocket money did Rohan have, in rupees?
  12. 12.69 is 20% of ?
  13. 13.Isha spent ₹126, which is 40% of the pocket money. How much pocket money did Isha have, in rupees?
  14. 14.42 is 15% of ?
  15. 15.Riya spent ₹8, which is 20% of the pocket money. How much pocket money did Riya have, in rupees?
  16. 16.90 is 25% of ?
  17. 17.Diya spent ₹140, which is 40% of the pocket money. How much pocket money did Diya have, in rupees?
  18. 18.87 is 30% of ?
  19. 19.30% of a number is 21. What is the number?
  20. 20.30% of a number is 33. What is the number?
  21. 21.20% of a number is 14. What is the number?
  22. 22.Anaya spent ₹116, which is 40% of the pocket money. How much pocket money did Anaya have, in rupees?
  23. 23.40% of a number is 130. What is the number?
  24. 24.Diya spent ₹16, which is 80% of the pocket money. How much pocket money did Diya have, in rupees?
  25. 25.80% of a number is 256. What is the number?
  26. 26.75% of a number is 45. What is the number?
  27. 27.20% of a number is 11. What is the number?
  28. 28.51 is 15% of ?
  29. 29.30% of a number is 105. What is the number?
  30. 30.19 is 10% of ?
  31. 31.Diya spent ₹36, which is 12% of the pocket money. How much pocket money did Diya have, in rupees?
  32. 32.15 is 15% of ?
  33. 33.Diya spent ₹72, which is 40% of the pocket money. How much pocket money did Diya have, in rupees?
  34. 34.27 is 12% of ?
  35. 35.Aarav spent ₹46, which is 20% of the pocket money. How much pocket money did Aarav have, in rupees?
  36. 36.Aarav spent ₹170, which is 50% of the pocket money. How much pocket money did Aarav have, in rupees?
  37. 37.25% of a number is 35. What is the number?
  38. 38.Riya spent ₹36, which is 12% of the pocket money. How much pocket money did Riya have, in rupees?
  39. 39.Anaya spent ₹159, which is 60% of the pocket money. How much pocket money did Anaya have, in rupees?
  40. 40.24 is 30% of ?

Answer key

  1. 324
  2. 395
  3. 10
  4. 325
  5. 130
  6. 60
  7. 40
  8. 324
  9. 340
  10. 210
  11. 385
  12. 345
  13. 315
  14. 280
  15. 40
  16. 360
  17. 350
  18. 290
  19. 70
  20. 110
  21. 70
  22. 290
  23. 325
  24. 20
  25. 320
  26. 60
  27. 55
  28. 340
  29. 350
  30. 190
  31. 300
  32. 100
  33. 180
  34. 225
  35. 230
  36. 340
  37. 140
  38. 300
  39. 265
  40. 80

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