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Percentage lesson 9: Find the whole from a percent · Set 282 · 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. 1.24 is 30% of ?
  2. 2.75% of a number is 246. What is the number?
  3. 3.Diya spent ₹99, which is 30% of the pocket money. How much pocket money did Diya have, in rupees?
  4. 4.56 is 40% of ?
  5. 5.129 is 50% of ?
  6. 6.80% of a number is 72. What is the number?
  7. 7.117 is 75% of ?
  8. 8.50% of a number is 11. What is the number?
  9. 9.3 is 10% of ?
  10. 10.12% of a number is 36. What is the number?
  11. 11.5% of a number is 13. What is the number?
  12. 12.60% of a number is 231. What is the number?
  13. 13.95 is 50% of ?
  14. 14.5% of a number is 6. What is the number?
  15. 15.Meera spent ₹161, which is 50% of the pocket money. How much pocket money did Meera have, in rupees?
  16. 16.10 is 5% of ?
  17. 17.5% of a number is 16. What is the number?
  18. 18.57 is 75% of ?
  19. 19.150 is 60% of ?
  20. 20.76 is 25% of ?
  21. 21.8 is 5% of ?
  22. 22.88 is 40% of ?
  23. 23.40% of a number is 16. What is the number?
  24. 24.80% of a number is 256. What is the number?
  25. 25.29 is 25% of ?
  26. 26.Isha spent ₹25, which is 20% of the pocket money. How much pocket money did Isha have, in rupees?
  27. 27.5% of a number is 3. What is the number?
  28. 28.33 is 15% of ?
  29. 29.Ishaan spent ₹114, which is 30% of the pocket money. How much pocket money did Ishaan have, in rupees?
  30. 30.Ishaan spent ₹45, which is 15% of the pocket money. How much pocket money did Ishaan have, in rupees?
  31. 31.25% of a number is 17. What is the number?
  32. 32.Kabir spent ₹33, which is 10% of the pocket money. How much pocket money did Kabir have, in rupees?
  33. 33.12% of a number is 39. What is the number?
  34. 34.60% of a number is 177. What is the number?
  35. 35.Aarav spent ₹30, which is 20% of the pocket money. How much pocket money did Aarav have, in rupees?
  36. 36.Diya spent ₹52, which is 40% of the pocket money. How much pocket money did Diya have, in rupees?
  37. 37.25% of a number is 79. What is the number?
  38. 38.10% of a number is 2. What is the number?
  39. 39.20% of a number is 79. What is the number?
  40. 40.30% of a number is 78. What is the number?

Answer key

  1. 80
  2. 328
  3. 330
  4. 140
  5. 258
  6. 90
  7. 156
  8. 22
  9. 30
  10. 300
  11. 260
  12. 385
  13. 190
  14. 120
  15. 322
  16. 200
  17. 320
  18. 76
  19. 250
  20. 304
  21. 160
  22. 220
  23. 40
  24. 320
  25. 116
  26. 125
  27. 60
  28. 220
  29. 380
  30. 300
  31. 68
  32. 330
  33. 325
  34. 295
  35. 150
  36. 130
  37. 316
  38. 20
  39. 395
  40. 260

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