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Percentage lesson 9: Find the whole from a percent · Set 449 · 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.Meera spent ₹36, which is 15% of the pocket money. How much pocket money did Meera have, in rupees?
  2. 2.51 is 15% of ?
  3. 3.20% of a number is 67. What is the number?
  4. 4.15% of a number is 12. What is the number?
  5. 5.Kabir spent ₹42, which is 20% of the pocket money. How much pocket money did Kabir have, in rupees?
  6. 6.20% of a number is 64. What is the number?
  7. 7.24 is 40% of ?
  8. 8.Ishaan spent ₹210, which is 75% of the pocket money. How much pocket money did Ishaan have, in rupees?
  9. 9.25% of a number is 2. What is the number?
  10. 10.60% of a number is 186. What is the number?
  11. 11.10% of a number is 34. What is the number?
  12. 12.80% of a number is 4. What is the number?
  13. 13.39 is 15% of ?
  14. 14.Ishaan spent ₹36, which is 75% of the pocket money. How much pocket money did Ishaan have, in rupees?
  15. 15.Dev spent ₹15, which is 5% of the pocket money. How much pocket money did Dev have, in rupees?
  16. 16.183 is 75% of ?
  17. 17.15 is 20% of ?
  18. 18.Isha spent ₹48, which is 12% of the pocket money. How much pocket money did Isha have, in rupees?
  19. 19.60% of a number is 45. What is the number?
  20. 20.297 is 75% of ?
  21. 21.3 is 12% of ?
  22. 22.84 is 80% of ?
  23. 23.Isha spent ₹2, which is 5% of the pocket money. How much pocket money did Isha have, in rupees?
  24. 24.Ishaan spent ₹72, which is 80% of the pocket money. How much pocket money did Ishaan have, in rupees?
  25. 25.40% of a number is 116. What is the number?
  26. 26.98 is 25% of ?
  27. 27.10% of a number is 37. What is the number?
  28. 28.132 is 75% of ?
  29. 29.40 is 40% of ?
  30. 30.6 is 5% of ?
  31. 31.12 is 12% of ?
  32. 32.Ishaan spent ₹30, which is 12% of the pocket money. How much pocket money did Ishaan have, in rupees?
  33. 33.Ishaan spent ₹168, which is 60% of the pocket money. How much pocket money did Ishaan have, in rupees?
  34. 34.Kabir spent ₹70, which is 25% of the pocket money. How much pocket money did Kabir have, in rupees?
  35. 35.Riya spent ₹3, which is 15% of the pocket money. How much pocket money did Riya have, in rupees?
  36. 36.Kabir spent ₹38, which is 25% of the pocket money. How much pocket money did Kabir have, in rupees?
  37. 37.Anaya spent ₹252, which is 75% of the pocket money. How much pocket money did Anaya have, in rupees?
  38. 38.25% of a number is 18. What is the number?
  39. 39.Isha spent ₹272, which is 80% of the pocket money. How much pocket money did Isha have, in rupees?
  40. 40.Dev spent ₹2, which is 5% of the pocket money. How much pocket money did Dev have, in rupees?

Answer key

  1. 240
  2. 340
  3. 335
  4. 80
  5. 210
  6. 320
  7. 60
  8. 280
  9. 8
  10. 310
  11. 340
  12. 5
  13. 260
  14. 48
  15. 300
  16. 244
  17. 75
  18. 400
  19. 75
  20. 396
  21. 25
  22. 105
  23. 40
  24. 90
  25. 290
  26. 392
  27. 370
  28. 176
  29. 100
  30. 120
  31. 100
  32. 250
  33. 280
  34. 280
  35. 20
  36. 152
  37. 336
  38. 72
  39. 340
  40. 40

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