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Percentage lesson 9: Find the whole from a percent · Set 531 · 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. 1.60% of a number is 87. What is the number?
  2. 2.Diya spent ₹252, which is 75% of the pocket money. How much pocket money did Diya have, in rupees?
  3. 3.Aarav spent ₹54, which is 20% of the pocket money. How much pocket money did Aarav have, in rupees?
  4. 4.30% of a number is 42. What is the number?
  5. 5.5% of a number is 3. What is the number?
  6. 6.30% of a number is 36. What is the number?
  7. 7.50% of a number is 112. What is the number?
  8. 8.20% of a number is 71. What is the number?
  9. 9.Dev spent ₹219, which is 60% of the pocket money. How much pocket money did Dev have, in rupees?
  10. 10.Kabir spent ₹14, which is 10% of the pocket money. How much pocket money did Kabir have, in rupees?
  11. 11.12% of a number is 36. What is the number?
  12. 12.Arjun spent ₹42, which is 15% of the pocket money. How much pocket money did Arjun have, in rupees?
  13. 13.Anaya spent ₹138, which is 40% of the pocket money. How much pocket money did Anaya have, in rupees?
  14. 14.6 is 30% of ?
  15. 15.50% of a number is 99. What is the number?
  16. 16.18 is 12% of ?
  17. 17.5 is 20% of ?
  18. 18.5% of a number is 4. What is the number?
  19. 19.10% of a number is 7. What is the number?
  20. 20.50% of a number is 24. What is the number?
  21. 21.Aarav spent ₹42, which is 12% of the pocket money. How much pocket money did Aarav have, in rupees?
  22. 22.8 is 5% of ?
  23. 23.9 is 30% of ?
  24. 24.88 is 80% of ?
  25. 25.Kabir spent ₹29, which is 10% of the pocket money. How much pocket money did Kabir have, in rupees?
  26. 26.Riya spent ₹96, which is 75% of the pocket money. How much pocket money did Riya have, in rupees?
  27. 27.30% of a number is 60. What is the number?
  28. 28.102 is 30% of ?
  29. 29.33 is 12% of ?
  30. 30.240 is 60% of ?
  31. 31.60% of a number is 192. What is the number?
  32. 32.20 is 5% of ?
  33. 33.Riya spent ₹150, which is 60% of the pocket money. How much pocket money did Riya have, in rupees?
  34. 34.Kabir spent ₹6, which is 5% of the pocket money. How much pocket money did Kabir have, in rupees?
  35. 35.80% of a number is 216. What is the number?
  36. 36.24 is 25% of ?
  37. 37.40 is 10% of ?
  38. 38.36 is 30% of ?
  39. 39.Dev spent ₹1, which is 20% of the pocket money. How much pocket money did Dev have, in rupees?
  40. 40.60% of a number is 102. What is the number?

Answer key

  1. 145
  2. 336
  3. 270
  4. 140
  5. 60
  6. 120
  7. 224
  8. 355
  9. 365
  10. 140
  11. 300
  12. 280
  13. 345
  14. 20
  15. 198
  16. 150
  17. 25
  18. 80
  19. 70
  20. 48
  21. 350
  22. 160
  23. 30
  24. 110
  25. 290
  26. 128
  27. 200
  28. 340
  29. 275
  30. 400
  31. 320
  32. 400
  33. 250
  34. 120
  35. 270
  36. 96
  37. 400
  38. 120
  39. 5
  40. 170

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