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Percentage lesson 9: Find the whole from a percent · Set 457 · 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.Anaya spent ₹234, which is 75% of the pocket money. How much pocket money did Anaya have, in rupees?
  2. 2.Ishaan spent ₹10, which is 50% of the pocket money. How much pocket money did Ishaan have, in rupees?
  3. 3.10% of a number is 10. What is the number?
  4. 4.Riya spent ₹63, which is 20% of the pocket money. How much pocket money did Riya have, in rupees?
  5. 5.49 is 20% of ?
  6. 6.Kabir spent ₹10, which is 10% of the pocket money. How much pocket money did Kabir have, in rupees?
  7. 7.40% of a number is 146. What is the number?
  8. 8.Ishaan spent ₹18, which is 12% of the pocket money. How much pocket money did Ishaan have, in rupees?
  9. 9.50% of a number is 39. What is the number?
  10. 10.5% of a number is 1. What is the number?
  11. 11.30 is 10% of ?
  12. 12.Ishaan spent ₹33, which is 12% of the pocket money. How much pocket money did Ishaan have, in rupees?
  13. 13.Aarav spent ₹19, which is 5% of the pocket money. How much pocket money did Aarav have, in rupees?
  14. 14.39 is 20% of ?
  15. 15.52 is 80% of ?
  16. 16.107 is 50% of ?
  17. 17.Dev spent ₹276, which is 80% of the pocket money. How much pocket money did Dev have, in rupees?
  18. 18.80% of a number is 56. What is the number?
  19. 19.25% of a number is 15. What is the number?
  20. 20.75% of a number is 126. What is the number?
  21. 21.36 is 12% of ?
  22. 22.Sara spent ₹39, which is 10% of the pocket money. How much pocket money did Sara have, in rupees?
  23. 23.Isha spent ₹85, which is 25% of the pocket money. How much pocket money did Isha have, in rupees?
  24. 24.126 is 40% of ?
  25. 25.151 is 50% of ?
  26. 26.Riya spent ₹48, which is 20% of the pocket money. How much pocket money did Riya have, in rupees?
  27. 27.Rohan spent ₹33, which is 25% of the pocket money. How much pocket money did Rohan have, in rupees?
  28. 28.12% of a number is 6. What is the number?
  29. 29.Riya spent ₹280, which is 80% of the pocket money. How much pocket money did Riya have, in rupees?
  30. 30.Dev spent ₹192, which is 60% of the pocket money. How much pocket money did Dev have, in rupees?
  31. 31.15% of a number is 6. What is the number?
  32. 32.20% of a number is 39. What is the number?
  33. 33.10% of a number is 7. What is the number?
  34. 34.30 is 30% of ?
  35. 35.Aarav spent ₹9, which is 12% of the pocket money. How much pocket money did Aarav have, in rupees?
  36. 36.25% of a number is 48. What is the number?
  37. 37.40 is 10% of ?
  38. 38.Diya spent ₹6, which is 12% of the pocket money. How much pocket money did Diya have, in rupees?
  39. 39.Dev spent ₹7, which is 5% of the pocket money. How much pocket money did Dev have, in rupees?
  40. 40.Meera spent ₹288, which is 80% of the pocket money. How much pocket money did Meera have, in rupees?

Answer key

  1. 312
  2. 20
  3. 100
  4. 315
  5. 245
  6. 100
  7. 365
  8. 150
  9. 78
  10. 20
  11. 300
  12. 275
  13. 380
  14. 195
  15. 65
  16. 214
  17. 345
  18. 70
  19. 60
  20. 168
  21. 300
  22. 390
  23. 340
  24. 315
  25. 302
  26. 240
  27. 132
  28. 50
  29. 350
  30. 320
  31. 40
  32. 195
  33. 70
  34. 100
  35. 75
  36. 192
  37. 400
  38. 50
  39. 140
  40. 360

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