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Percentage lesson 9: Find the whole from a percent · Set 710 · 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.Riya spent ₹10, which is 5% of the pocket money. How much pocket money did Riya have, in rupees?
  2. 2.15 is 15% of ?
  3. 3.189 is 50% of ?
  4. 4.50% of a number is 194. What is the number?
  5. 5.38 is 20% of ?
  6. 6.12% of a number is 3. What is the number?
  7. 7.Kabir spent ₹37, which is 20% of the pocket money. How much pocket money did Kabir have, in rupees?
  8. 8.60% of a number is 54. What is the number?
  9. 9.44 is 40% of ?
  10. 10.Meera spent ₹47, which is 25% of the pocket money. How much pocket money did Meera have, in rupees?
  11. 11.21 is 15% of ?
  12. 12.Ishaan spent ₹1, which is 5% of the pocket money. How much pocket money did Ishaan have, in rupees?
  13. 13.30% of a number is 66. What is the number?
  14. 14.30% of a number is 21. What is the number?
  15. 15.Diya spent ₹64, which is 80% of the pocket money. How much pocket money did Diya have, in rupees?
  16. 16.30% of a number is 105. What is the number?
  17. 17.65 is 20% of ?
  18. 18.168 is 75% of ?
  19. 19.10 is 10% of ?
  20. 20.25% of a number is 8. What is the number?
  21. 21.12% of a number is 24. What is the number?
  22. 22.36 is 25% of ?
  23. 23.12 is 60% of ?
  24. 24.2 is 5% of ?
  25. 25.25% of a number is 44. What is the number?
  26. 26.18 is 60% of ?
  27. 27.Kabir spent ₹50, which is 40% of the pocket money. How much pocket money did Kabir have, in rupees?
  28. 28.Meera spent ₹9, which is 5% of the pocket money. How much pocket money did Meera have, in rupees?
  29. 29.204 is 60% of ?
  30. 30.Dev spent ₹35, which is 50% of the pocket money. How much pocket money did Dev have, in rupees?
  31. 31.19 is 10% of ?
  32. 32.Riya spent ₹12, which is 5% of the pocket money. How much pocket money did Riya have, in rupees?
  33. 33.47 is 20% of ?
  34. 34.25% of a number is 25. What is the number?
  35. 35.Meera spent ₹135, which is 60% of the pocket money. How much pocket money did Meera have, in rupees?
  36. 36.10% of a number is 38. What is the number?
  37. 37.41 is 50% of ?
  38. 38.73 is 20% of ?
  39. 39.12% of a number is 45. What is the number?
  40. 40.6 is 15% of ?

Answer key

  1. 200
  2. 100
  3. 378
  4. 388
  5. 190
  6. 25
  7. 185
  8. 90
  9. 110
  10. 188
  11. 140
  12. 20
  13. 220
  14. 70
  15. 80
  16. 350
  17. 325
  18. 224
  19. 100
  20. 32
  21. 200
  22. 144
  23. 20
  24. 40
  25. 176
  26. 30
  27. 125
  28. 180
  29. 340
  30. 70
  31. 190
  32. 240
  33. 235
  34. 100
  35. 225
  36. 380
  37. 82
  38. 365
  39. 375
  40. 40

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