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Percentage lesson 9: Find the whole from a percent · Set 127 · 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.Aarav spent ₹159, which is 50% of the pocket money. How much pocket money did Aarav have, in rupees?
  2. 2.Meera spent ₹78, which is 20% of the pocket money. How much pocket money did Meera have, in rupees?
  3. 3.30% of a number is 21. What is the number?
  4. 4.50% of a number is 67. What is the number?
  5. 5.20% of a number is 72. What is the number?
  6. 6.10% of a number is 15. What is the number?
  7. 7.21 is 60% of ?
  8. 8.Dev spent ₹18, which is 10% of the pocket money. How much pocket money did Dev have, in rupees?
  9. 9.40% of a number is 10. What is the number?
  10. 10.Diya spent ₹72, which is 50% of the pocket money. How much pocket money did Diya have, in rupees?
  11. 11.Aarav spent ₹248, which is 80% of the pocket money. How much pocket money did Aarav have, in rupees?
  12. 12.80% of a number is 204. What is the number?
  13. 13.Diya spent ₹11, which is 20% of the pocket money. How much pocket money did Diya have, in rupees?
  14. 14.144 is 40% of ?
  15. 15.40% of a number is 156. What is the number?
  16. 16.30% of a number is 27. What is the number?
  17. 17.Riya spent ₹36, which is 75% of the pocket money. How much pocket money did Riya have, in rupees?
  18. 18.20% of a number is 70. What is the number?
  19. 19.75% of a number is 45. What is the number?
  20. 20.75% of a number is 48. What is the number?
  21. 21.Ishaan spent ₹3, which is 5% of the pocket money. How much pocket money did Ishaan have, in rupees?
  22. 22.Ishaan spent ₹29, which is 20% of the pocket money. How much pocket money did Ishaan have, in rupees?
  23. 23.30% of a number is 48. What is the number?
  24. 24.77 is 25% of ?
  25. 25.234 is 75% of ?
  26. 26.12 is 15% of ?
  27. 27.Rohan spent ₹48, which is 80% of the pocket money. How much pocket money did Rohan have, in rupees?
  28. 28.50% of a number is 115. What is the number?
  29. 29.54 is 60% of ?
  30. 30.75% of a number is 273. What is the number?
  31. 31.Ishaan spent ₹261, which is 75% of the pocket money. How much pocket money did Ishaan have, in rupees?
  32. 32.Riya spent ₹31, which is 10% of the pocket money. How much pocket money did Riya have, in rupees?
  33. 33.Anaya spent ₹90, which is 30% of the pocket money. How much pocket money did Anaya have, in rupees?
  34. 34.Sara spent ₹110, which is 40% of the pocket money. How much pocket money did Sara have, in rupees?
  35. 35.56 is 40% of ?
  36. 36.Meera spent ₹10, which is 5% of the pocket money. How much pocket money did Meera have, in rupees?
  37. 37.15% of a number is 9. What is the number?
  38. 38.Arjun spent ₹8, which is 5% of the pocket money. How much pocket money did Arjun have, in rupees?
  39. 39.63 is 75% of ?
  40. 40.Kabir spent ₹9, which is 15% of the pocket money. How much pocket money did Kabir have, in rupees?

Answer key

  1. 318
  2. 390
  3. 70
  4. 134
  5. 360
  6. 150
  7. 35
  8. 180
  9. 25
  10. 144
  11. 310
  12. 255
  13. 55
  14. 360
  15. 390
  16. 90
  17. 48
  18. 350
  19. 60
  20. 64
  21. 60
  22. 145
  23. 160
  24. 308
  25. 312
  26. 80
  27. 60
  28. 230
  29. 90
  30. 364
  31. 348
  32. 310
  33. 300
  34. 275
  35. 140
  36. 200
  37. 60
  38. 160
  39. 84
  40. 60

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