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Percentage lesson 9: Find the whole from a percent · Set 203 · 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.Anaya spent ₹180, which is 60% of the pocket money. How much pocket money did Anaya have, in rupees?
  2. 2.25% of a number is 49. What is the number?
  3. 3.Ishaan spent ₹3, which is 10% of the pocket money. How much pocket money did Ishaan have, in rupees?
  4. 4.75% of a number is 216. What is the number?
  5. 5.Dev spent ₹24, which is 12% of the pocket money. How much pocket money did Dev have, in rupees?
  6. 6.10% of a number is 5. What is the number?
  7. 7.Rohan spent ₹180, which is 80% of the pocket money. How much pocket money did Rohan have, in rupees?
  8. 8.48 is 80% of ?
  9. 9.Arjun spent ₹36, which is 40% of the pocket money. How much pocket money did Arjun have, in rupees?
  10. 10.Riya spent ₹138, which is 40% of the pocket money. How much pocket money did Riya have, in rupees?
  11. 11.50 is 20% of ?
  12. 12.Arjun spent ₹117, which is 30% of the pocket money. How much pocket money did Arjun have, in rupees?
  13. 13.Diya spent ₹237, which is 60% of the pocket money. How much pocket money did Diya have, in rupees?
  14. 14.Ishaan spent ₹4, which is 20% of the pocket money. How much pocket money did Ishaan have, in rupees?
  15. 15.126 is 75% of ?
  16. 16.12% of a number is 36. What is the number?
  17. 17.Anaya spent ₹207, which is 75% of the pocket money. How much pocket money did Anaya have, in rupees?
  18. 18.18 is 15% of ?
  19. 19.60% of a number is 42. What is the number?
  20. 20.52 is 40% of ?
  21. 21.51 is 25% of ?
  22. 22.Riya spent ₹45, which is 12% of the pocket money. How much pocket money did Riya have, in rupees?
  23. 23.22 is 25% of ?
  24. 24.20% of a number is 63. What is the number?
  25. 25.6 is 5% of ?
  26. 26.20% of a number is 4. What is the number?
  27. 27.Riya spent ₹3, which is 12% of the pocket money. How much pocket money did Riya have, in rupees?
  28. 28.25% of a number is 61. What is the number?
  29. 29.Aarav spent ₹45, which is 50% of the pocket money. How much pocket money did Aarav have, in rupees?
  30. 30.40% of a number is 42. What is the number?
  31. 31.33 is 15% of ?
  32. 32.Diya spent ₹6, which is 50% of the pocket money. How much pocket money did Diya have, in rupees?
  33. 33.5% of a number is 15. What is the number?
  34. 34.146 is 40% of ?
  35. 35.Meera spent ₹27, which is 12% of the pocket money. How much pocket money did Meera have, in rupees?
  36. 36.196 is 80% of ?
  37. 37.10% of a number is 28. What is the number?
  38. 38.Arjun spent ₹120, which is 30% of the pocket money. How much pocket money did Arjun have, in rupees?
  39. 39.21 is 12% of ?
  40. 40.60% of a number is 39. What is the number?

Answer key

  1. 300
  2. 196
  3. 30
  4. 288
  5. 200
  6. 50
  7. 225
  8. 60
  9. 90
  10. 345
  11. 250
  12. 390
  13. 395
  14. 20
  15. 168
  16. 300
  17. 276
  18. 120
  19. 70
  20. 130
  21. 204
  22. 375
  23. 88
  24. 315
  25. 120
  26. 20
  27. 25
  28. 244
  29. 90
  30. 105
  31. 220
  32. 12
  33. 300
  34. 365
  35. 225
  36. 245
  37. 280
  38. 400
  39. 175
  40. 65

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