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Percentage lesson 9: Find the whole from a percent · Set 285 · 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 ₹116, which is 80% of the pocket money. How much pocket money did Anaya have, in rupees?
  2. 2.26 is 20% of ?
  3. 3.Dev spent ₹42, which is 60% of the pocket money. How much pocket money did Dev have, in rupees?
  4. 4.15% of a number is 12. What is the number?
  5. 5.42 is 40% of ?
  6. 6.Diya spent ₹9, which is 12% of the pocket money. How much pocket money did Diya have, in rupees?
  7. 7.80% of a number is 320. What is the number?
  8. 8.20% of a number is 68. What is the number?
  9. 9.23 is 10% of ?
  10. 10.Kabir spent ₹48, which is 30% of the pocket money. How much pocket money did Kabir have, in rupees?
  11. 11.75% of a number is 216. What is the number?
  12. 12.Dev spent ₹27, which is 10% of the pocket money. How much pocket money did Dev have, in rupees?
  13. 13.75% of a number is 255. What is the number?
  14. 14.Riya spent ₹21, which is 30% of the pocket money. How much pocket money did Riya have, in rupees?
  15. 15.272 is 80% of ?
  16. 16.Arjun spent ₹94, which is 25% of the pocket money. How much pocket money did Arjun have, in rupees?
  17. 17.120 is 30% of ?
  18. 18.39 is 12% of ?
  19. 19.11 is 10% of ?
  20. 20.18 is 60% of ?
  21. 21.Isha spent ₹34, which is 10% of the pocket money. How much pocket money did Isha have, in rupees?
  22. 22.Sara spent ₹150, which is 60% of the pocket money. How much pocket money did Sara have, in rupees?
  23. 23.27 is 30% of ?
  24. 24.12 is 30% of ?
  25. 25.5% of a number is 9. What is the number?
  26. 26.Diya spent ₹39, which is 75% of the pocket money. How much pocket money did Diya have, in rupees?
  27. 27.20% of a number is 66. What is the number?
  28. 28.138 is 60% of ?
  29. 29.Riya spent ₹86, which is 25% of the pocket money. How much pocket money did Riya have, in rupees?
  30. 30.1 is 10% of ?
  31. 31.189 is 60% of ?
  32. 32.Diya spent ₹51, which is 15% of the pocket money. How much pocket money did Diya have, in rupees?
  33. 33.Ishaan spent ₹39, which is 25% of the pocket money. How much pocket money did Ishaan have, in rupees?
  34. 34.3 is 20% of ?
  35. 35.69 is 30% of ?
  36. 36.Sara spent ₹50, which is 20% of the pocket money. How much pocket money did Sara have, in rupees?
  37. 37.61 is 20% of ?
  38. 38.36 is 15% of ?
  39. 39.Isha spent ₹9, which is 30% of the pocket money. How much pocket money did Isha have, in rupees?
  40. 40.50% of a number is 24. What is the number?

Answer key

  1. 145
  2. 130
  3. 70
  4. 80
  5. 105
  6. 75
  7. 400
  8. 340
  9. 230
  10. 160
  11. 288
  12. 270
  13. 340
  14. 70
  15. 340
  16. 376
  17. 400
  18. 325
  19. 110
  20. 30
  21. 340
  22. 250
  23. 90
  24. 40
  25. 180
  26. 52
  27. 330
  28. 230
  29. 344
  30. 10
  31. 315
  32. 340
  33. 156
  34. 15
  35. 230
  36. 250
  37. 305
  38. 240
  39. 30
  40. 48

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