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Percentage lesson 9: Find the whole from a percent · Set 647 · 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 ₹136, which is 40% of the pocket money. How much pocket money did Rohan have, in rupees?
  2. 2.5 is 20% of ?
  3. 3.40% of a number is 98. What is the number?
  4. 4.300 is 80% of ?
  5. 5.Arjun spent ₹97, which is 50% of the pocket money. How much pocket money did Arjun have, in rupees?
  6. 6.25% of a number is 68. What is the number?
  7. 7.Kabir spent ₹144, which is 80% of the pocket money. How much pocket money did Kabir have, in rupees?
  8. 8.4 is 20% of ?
  9. 9.25% of a number is 21. What is the number?
  10. 10.212 is 80% of ?
  11. 11.Aarav spent ₹68, which is 25% of the pocket money. How much pocket money did Aarav have, in rupees?
  12. 12.48 is 15% of ?
  13. 13.Riya spent ₹159, which is 50% of the pocket money. How much pocket money did Riya have, in rupees?
  14. 14.50% of a number is 73. What is the number?
  15. 15.10% of a number is 14. What is the number?
  16. 16.30% of a number is 6. What is the number?
  17. 17.Meera spent ₹92, which is 40% of the pocket money. How much pocket money did Meera have, in rupees?
  18. 18.Riya spent ₹13, which is 5% of the pocket money. How much pocket money did Riya have, in rupees?
  19. 19.Ishaan spent ₹61, which is 25% of the pocket money. How much pocket money did Ishaan have, in rupees?
  20. 20.12% of a number is 39. What is the number?
  21. 21.118 is 40% of ?
  22. 22.5% of a number is 5. What is the number?
  23. 23.56 is 50% of ?
  24. 24.15 is 75% of ?
  25. 25.34 is 20% of ?
  26. 26.Ishaan spent ₹64, which is 20% of the pocket money. How much pocket money did Ishaan have, in rupees?
  27. 27.231 is 75% of ?
  28. 28.30% of a number is 42. What is the number?
  29. 29.Dev spent ₹28, which is 25% of the pocket money. How much pocket money did Dev have, in rupees?
  30. 30.Isha spent ₹7, which is 10% of the pocket money. How much pocket money did Isha have, in rupees?
  31. 31.15% of a number is 54. What is the number?
  32. 32.Rohan spent ₹228, which is 60% of the pocket money. How much pocket money did Rohan have, in rupees?
  33. 33.75% of a number is 237. What is the number?
  34. 34.117 is 30% of ?
  35. 35.Isha spent ₹26, which is 10% of the pocket money. How much pocket money did Isha have, in rupees?
  36. 36.Rohan spent ₹94, which is 25% of the pocket money. How much pocket money did Rohan have, in rupees?
  37. 37.2 is 5% of ?
  38. 38.60% of a number is 39. What is the number?
  39. 39.15% of a number is 30. What is the number?
  40. 40.30 is 40% of ?

Answer key

  1. 340
  2. 25
  3. 245
  4. 375
  5. 194
  6. 272
  7. 180
  8. 20
  9. 84
  10. 265
  11. 272
  12. 320
  13. 318
  14. 146
  15. 140
  16. 20
  17. 230
  18. 260
  19. 244
  20. 325
  21. 295
  22. 100
  23. 112
  24. 20
  25. 170
  26. 320
  27. 308
  28. 140
  29. 112
  30. 70
  31. 360
  32. 380
  33. 316
  34. 390
  35. 260
  36. 376
  37. 40
  38. 65
  39. 200
  40. 75

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