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Percentage lesson 9: Find the whole from a percent · Set 229 · 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.Rohan spent ₹69, which is 20% of the pocket money. How much pocket money did Rohan have, in rupees?
  2. 2.Dev spent ₹1, which is 25% of the pocket money. How much pocket money did Dev have, in rupees?
  3. 3.60% of a number is 87. What is the number?
  4. 4.Aarav spent ₹50, which is 20% of the pocket money. How much pocket money did Aarav have, in rupees?
  5. 5.156 is 40% of ?
  6. 6.102 is 30% of ?
  7. 7.Dev spent ₹75, which is 30% of the pocket money. How much pocket money did Dev have, in rupees?
  8. 8.5 is 10% of ?
  9. 9.Arjun spent ₹24, which is 15% of the pocket money. How much pocket money did Arjun have, in rupees?
  10. 10.240 is 60% of ?
  11. 11.24 is 20% of ?
  12. 12.Riya spent ₹48, which is 15% of the pocket money. How much pocket money did Riya have, in rupees?
  13. 13.40% of a number is 20. What is the number?
  14. 14.84 is 25% of ?
  15. 15.15% of a number is 57. What is the number?
  16. 16.Meera spent ₹124, which is 40% of the pocket money. How much pocket money did Meera have, in rupees?
  17. 17.10% of a number is 16. What is the number?
  18. 18.292 is 80% of ?
  19. 19.80 is 20% of ?
  20. 20.Anaya spent ₹134, which is 40% of the pocket money. How much pocket money did Anaya have, in rupees?
  21. 21.18 is 25% of ?
  22. 22.Dev spent ₹66, which is 75% of the pocket money. How much pocket money did Dev have, in rupees?
  23. 23.Aarav spent ₹48, which is 50% of the pocket money. How much pocket money did Aarav have, in rupees?
  24. 24.16 is 5% of ?
  25. 25.9 is 15% of ?
  26. 26.75% of a number is 75. What is the number?
  27. 27.25% of a number is 50. What is the number?
  28. 28.Meera spent ₹36, which is 10% of the pocket money. How much pocket money did Meera have, in rupees?
  29. 29.99 is 30% of ?
  30. 30.84 is 80% of ?
  31. 31.Meera spent ₹3, which is 5% of the pocket money. How much pocket money did Meera have, in rupees?
  32. 32.31 is 25% of ?
  33. 33.30% of a number is 87. What is the number?
  34. 34.15% of a number is 54. What is the number?
  35. 35.Diya spent ₹29, which is 25% of the pocket money. How much pocket money did Diya have, in rupees?
  36. 36.10% of a number is 5. What is the number?
  37. 37.Diya spent ₹177, which is 75% of the pocket money. How much pocket money did Diya have, in rupees?
  38. 38.213 is 75% of ?
  39. 39.80% of a number is 232. What is the number?
  40. 40.Kabir spent ₹8, which is 10% of the pocket money. How much pocket money did Kabir have, in rupees?

Answer key

  1. 345
  2. 4
  3. 145
  4. 250
  5. 390
  6. 340
  7. 250
  8. 50
  9. 160
  10. 400
  11. 120
  12. 320
  13. 50
  14. 336
  15. 380
  16. 310
  17. 160
  18. 365
  19. 400
  20. 335
  21. 72
  22. 88
  23. 96
  24. 320
  25. 60
  26. 100
  27. 200
  28. 360
  29. 330
  30. 105
  31. 60
  32. 124
  33. 290
  34. 360
  35. 116
  36. 50
  37. 236
  38. 284
  39. 290
  40. 80

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