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Percentage lesson 9: Find the whole from a percent · Set 151 · 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.Diya spent ₹164, which is 80% of the pocket money. How much pocket money did Diya have, in rupees?
  2. 2.Ishaan spent ₹52, which is 40% of the pocket money. How much pocket money did Ishaan have, in rupees?
  3. 3.Rohan spent ₹13, which is 25% of the pocket money. How much pocket money did Rohan have, in rupees?
  4. 4.108 is 50% of ?
  5. 5.Diya spent ₹244, which is 80% of the pocket money. How much pocket money did Diya have, in rupees?
  6. 6.66 is 75% of ?
  7. 7.12% of a number is 48. What is the number?
  8. 8.Ishaan spent ₹6, which is 75% of the pocket money. How much pocket money did Ishaan have, in rupees?
  9. 9.Riya spent ₹144, which is 40% of the pocket money. How much pocket money did Riya have, in rupees?
  10. 10.Isha spent ₹300, which is 80% of the pocket money. How much pocket money did Isha have, in rupees?
  11. 11.12% of a number is 6. What is the number?
  12. 12.20% of a number is 10. What is the number?
  13. 13.75% of a number is 87. What is the number?
  14. 14.168 is 50% of ?
  15. 15.25% of a number is 6. What is the number?
  16. 16.63 is 75% of ?
  17. 17.123 is 60% of ?
  18. 18.Kabir spent ₹35, which is 50% of the pocket money. How much pocket money did Kabir have, in rupees?
  19. 19.10% of a number is 37. What is the number?
  20. 20.25% of a number is 40. What is the number?
  21. 21.7 is 5% of ?
  22. 22.Meera spent ₹5, which is 20% of the pocket money. How much pocket money did Meera have, in rupees?
  23. 23.25% of a number is 52. What is the number?
  24. 24.Rohan spent ₹240, which is 80% of the pocket money. How much pocket money did Rohan have, in rupees?
  25. 25.9 is 5% of ?
  26. 26.Arjun spent ₹62, which is 40% of the pocket money. How much pocket money did Arjun have, in rupees?
  27. 27.Diya spent ₹43, which is 20% of the pocket money. How much pocket money did Diya have, in rupees?
  28. 28.Isha spent ₹176, which is 50% of the pocket money. How much pocket money did Isha have, in rupees?
  29. 29.75% of a number is 294. What is the number?
  30. 30.20% of a number is 31. What is the number?
  31. 31.Arjun spent ₹180, which is 80% of the pocket money. How much pocket money did Arjun have, in rupees?
  32. 32.50% of a number is 74. What is the number?
  33. 33.Dev spent ₹39, which is 12% of the pocket money. How much pocket money did Dev have, in rupees?
  34. 34.25% of a number is 32. What is the number?
  35. 35.20 is 20% of ?
  36. 36.Meera spent ₹6, which is 10% of the pocket money. How much pocket money did Meera have, in rupees?
  37. 37.Riya spent ₹57, which is 20% of the pocket money. How much pocket money did Riya have, in rupees?
  38. 38.Diya spent ₹30, which is 20% of the pocket money. How much pocket money did Diya have, in rupees?
  39. 39.3 is 30% of ?
  40. 40.40% of a number is 34. What is the number?

Answer key

  1. 205
  2. 130
  3. 52
  4. 216
  5. 305
  6. 88
  7. 400
  8. 8
  9. 360
  10. 375
  11. 50
  12. 50
  13. 116
  14. 336
  15. 24
  16. 84
  17. 205
  18. 70
  19. 370
  20. 160
  21. 140
  22. 25
  23. 208
  24. 300
  25. 180
  26. 155
  27. 215
  28. 352
  29. 392
  30. 155
  31. 225
  32. 148
  33. 325
  34. 128
  35. 100
  36. 60
  37. 285
  38. 150
  39. 10
  40. 85

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