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Percentage lesson 9: Find the whole from a percent · Set 477 · 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.

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  1. 1.12% of a number is 12. What is the number?
  2. 2.57 is 75% of ?
  3. 3.20% of a number is 14. What is the number?
  4. 4.Anaya spent ₹36, which is 15% of the pocket money. How much pocket money did Anaya have, in rupees?
  5. 5.Riya spent ₹12, which is 25% of the pocket money. How much pocket money did Riya have, in rupees?
  6. 6.40% of a number is 72. What is the number?
  7. 7.25% of a number is 1. What is the number?
  8. 8.Aarav spent ₹30, which is 25% of the pocket money. How much pocket money did Aarav have, in rupees?
  9. 9.25% of a number is 84. What is the number?
  10. 10.Ishaan spent ₹36, which is 10% of the pocket money. How much pocket money did Ishaan have, in rupees?
  11. 11.Ishaan spent ₹273, which is 75% of the pocket money. How much pocket money did Ishaan have, in rupees?
  12. 12.Rohan spent ₹12, which is 5% of the pocket money. How much pocket money did Rohan have, in rupees?
  13. 13.40% of a number is 160. What is the number?
  14. 14.25% of a number is 32. What is the number?
  15. 15.15 is 5% of ?
  16. 16.57 is 15% of ?
  17. 17.80% of a number is 228. What is the number?
  18. 18.30% of a number is 108. What is the number?
  19. 19.Rohan spent ₹72, which is 20% of the pocket money. How much pocket money did Rohan have, in rupees?
  20. 20.Kabir spent ₹8, which is 20% of the pocket money. How much pocket money did Kabir have, in rupees?
  21. 21.Sara spent ₹15, which is 5% of the pocket money. How much pocket money did Sara have, in rupees?
  22. 22.Sara spent ₹21, which is 10% of the pocket money. How much pocket money did Sara have, in rupees?
  23. 23.Arjun spent ₹99, which is 30% of the pocket money. How much pocket money did Arjun have, in rupees?
  24. 24.Diya spent ₹9, which is 30% of the pocket money. How much pocket money did Diya have, in rupees?
  25. 25.30% of a number is 114. What is the number?
  26. 26.Dev spent ₹104, which is 80% of the pocket money. How much pocket money did Dev have, in rupees?
  27. 27.Isha spent ₹5, which is 5% of the pocket money. How much pocket money did Isha have, in rupees?
  28. 28.3 is 5% of ?
  29. 29.53 is 20% of ?
  30. 30.Ishaan spent ₹92, which is 80% of the pocket money. How much pocket money did Ishaan have, in rupees?
  31. 31.12% of a number is 6. What is the number?
  32. 32.Isha spent ₹9, which is 5% of the pocket money. How much pocket money did Isha have, in rupees?
  33. 33.Diya spent ₹120, which is 75% of the pocket money. How much pocket money did Diya have, in rupees?
  34. 34.29 is 10% of ?
  35. 35.Kabir spent ₹39, which is 10% of the pocket money. How much pocket money did Kabir have, in rupees?
  36. 36.9 is 10% of ?
  37. 37.Anaya spent ₹69, which is 30% of the pocket money. How much pocket money did Anaya have, in rupees?
  38. 38.20% of a number is 23. What is the number?
  39. 39.60 is 75% of ?
  40. 40.51 is 30% of ?

Answer key

  1. 100
  2. 76
  3. 70
  4. 240
  5. 48
  6. 180
  7. 4
  8. 120
  9. 336
  10. 360
  11. 364
  12. 240
  13. 400
  14. 128
  15. 300
  16. 380
  17. 285
  18. 360
  19. 360
  20. 40
  21. 300
  22. 210
  23. 330
  24. 30
  25. 380
  26. 130
  27. 100
  28. 60
  29. 265
  30. 115
  31. 50
  32. 180
  33. 160
  34. 290
  35. 390
  36. 90
  37. 230
  38. 115
  39. 80
  40. 170

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