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Percentage lesson 9: Find the whole from a percent · Set 502 · 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. 1.12% of a number is 39. What is the number?
  2. 2.160 is 80% of ?
  3. 3.Riya spent ₹126, which is 75% of the pocket money. How much pocket money did Riya have, in rupees?
  4. 4.9 is 15% of ?
  5. 5.60% of a number is 222. What is the number?
  6. 6.72 is 75% of ?
  7. 7.60% of a number is 66. What is the number?
  8. 8.15% of a number is 12. What is the number?
  9. 9.Diya spent ₹35, which is 10% of the pocket money. How much pocket money did Diya have, in rupees?
  10. 10.42 is 15% of ?
  11. 11.Sara spent ₹11, which is 5% of the pocket money. How much pocket money did Sara have, in rupees?
  12. 12.10 is 5% of ?
  13. 13.20% of a number is 42. What is the number?
  14. 14.80% of a number is 64. What is the number?
  15. 15.15% of a number is 15. What is the number?
  16. 16.Rohan spent ₹192, which is 75% of the pocket money. How much pocket money did Rohan have, in rupees?
  17. 17.Riya spent ₹85, which is 50% of the pocket money. How much pocket money did Riya have, in rupees?
  18. 18.10% of a number is 11. What is the number?
  19. 19.10% of a number is 14. What is the number?
  20. 20.Kabir spent ₹11, which is 10% of the pocket money. How much pocket money did Kabir have, in rupees?
  21. 21.Ishaan spent ₹30, which is 10% of the pocket money. How much pocket money did Ishaan have, in rupees?
  22. 22.Kabir spent ₹31, which is 50% of the pocket money. How much pocket money did Kabir have, in rupees?
  23. 23.180 is 75% of ?
  24. 24.25% of a number is 23. What is the number?
  25. 25.56 is 40% of ?
  26. 26.Dev spent ₹102, which is 40% of the pocket money. How much pocket money did Dev have, in rupees?
  27. 27.80% of a number is 16. What is the number?
  28. 28.36 is 15% of ?
  29. 29.Sara spent ₹66, which is 25% of the pocket money. How much pocket money did Sara have, in rupees?
  30. 30.5% of a number is 5. What is the number?
  31. 31.20% of a number is 78. What is the number?
  32. 32.96 is 60% of ?
  33. 33.75% of a number is 18. What is the number?
  34. 34.75% of a number is 36. What is the number?
  35. 35.27 is 60% of ?
  36. 36.44 is 25% of ?
  37. 37.38 is 20% of ?
  38. 38.204 is 75% of ?
  39. 39.Rohan spent ₹22, which is 20% of the pocket money. How much pocket money did Rohan have, in rupees?
  40. 40.84 is 40% of ?

Answer key

  1. 325
  2. 200
  3. 168
  4. 60
  5. 370
  6. 96
  7. 110
  8. 80
  9. 350
  10. 280
  11. 220
  12. 200
  13. 210
  14. 80
  15. 100
  16. 256
  17. 170
  18. 110
  19. 140
  20. 110
  21. 300
  22. 62
  23. 240
  24. 92
  25. 140
  26. 255
  27. 20
  28. 240
  29. 264
  30. 100
  31. 390
  32. 160
  33. 24
  34. 48
  35. 45
  36. 176
  37. 190
  38. 272
  39. 110
  40. 210

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