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Percentage lesson 9: Find the whole from a percent · Set 52 · 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. 1.166 is 50% of ?
  2. 2.Ishaan spent ₹231, which is 60% of the pocket money. How much pocket money did Ishaan have, in rupees?
  3. 3.35 is 10% of ?
  4. 4.Sara spent ₹57, which is 50% of the pocket money. How much pocket money did Sara have, in rupees?
  5. 5.Arjun spent ₹78, which is 40% of the pocket money. How much pocket money did Arjun have, in rupees?
  6. 6.20% of a number is 37. What is the number?
  7. 7.30 is 12% of ?
  8. 8.Ishaan spent ₹48, which is 25% of the pocket money. How much pocket money did Ishaan have, in rupees?
  9. 9.Arjun spent ₹7, which is 5% of the pocket money. How much pocket money did Arjun have, in rupees?
  10. 10.30% of a number is 33. What is the number?
  11. 11.15% of a number is 39. What is the number?
  12. 12.Kabir spent ₹8, which is 20% of the pocket money. How much pocket money did Kabir have, in rupees?
  13. 13.12% of a number is 42. What is the number?
  14. 14.232 is 80% of ?
  15. 15.30% of a number is 75. What is the number?
  16. 16.3 is 50% of ?
  17. 17.10% of a number is 13. What is the number?
  18. 18.80% of a number is 52. What is the number?
  19. 19.2 is 10% of ?
  20. 20.15% of a number is 57. What is the number?
  21. 21.Rohan spent ₹81, which is 50% of the pocket money. How much pocket money did Rohan have, in rupees?
  22. 22.50% of a number is 46. What is the number?
  23. 23.75% of a number is 114. What is the number?
  24. 24.27 is 10% of ?
  25. 25.25% of a number is 12. What is the number?
  26. 26.29 is 10% of ?
  27. 27.10% of a number is 12. What is the number?
  28. 28.Dev spent ₹44, which is 80% of the pocket money. How much pocket money did Dev have, in rupees?
  29. 29.20% of a number is 63. What is the number?
  30. 30.15 is 20% of ?
  31. 31.20% of a number is 77. What is the number?
  32. 32.60% of a number is 198. What is the number?
  33. 33.20% of a number is 55. What is the number?
  34. 34.50% of a number is 150. What is the number?
  35. 35.Kabir spent ₹24, which is 12% of the pocket money. How much pocket money did Kabir have, in rupees?
  36. 36.15 is 30% of ?
  37. 37.15% of a number is 24. What is the number?
  38. 38.18 is 5% of ?
  39. 39.30% of a number is 24. What is the number?
  40. 40.114 is 30% of ?

Answer key

  1. 332
  2. 385
  3. 350
  4. 114
  5. 195
  6. 185
  7. 250
  8. 192
  9. 140
  10. 110
  11. 260
  12. 40
  13. 350
  14. 290
  15. 250
  16. 6
  17. 130
  18. 65
  19. 20
  20. 380
  21. 162
  22. 92
  23. 152
  24. 270
  25. 48
  26. 290
  27. 120
  28. 55
  29. 315
  30. 75
  31. 385
  32. 330
  33. 275
  34. 300
  35. 200
  36. 50
  37. 160
  38. 360
  39. 80
  40. 380

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