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Percentage lesson 9: Find the whole from a percent · Set 334 · 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. 1.20% of a number is 38. What is the number?
  2. 2.Diya spent ₹168, which is 50% of the pocket money. How much pocket money did Diya have, in rupees?
  3. 3.Riya spent ₹216, which is 75% of the pocket money. How much pocket money did Riya have, in rupees?
  4. 4.Anaya spent ₹195, which is 60% of the pocket money. How much pocket money did Anaya have, in rupees?
  5. 5.Ishaan spent ₹18, which is 15% of the pocket money. How much pocket money did Ishaan have, in rupees?
  6. 6.Aarav spent ₹36, which is 75% of the pocket money. How much pocket money did Aarav have, in rupees?
  7. 7.Isha spent ₹42, which is 40% of the pocket money. How much pocket money did Isha have, in rupees?
  8. 8.Arjun spent ₹39, which is 12% of the pocket money. How much pocket money did Arjun have, in rupees?
  9. 9.51 is 30% of ?
  10. 10.Kabir spent ₹21, which is 10% of the pocket money. How much pocket money did Kabir have, in rupees?
  11. 11.60% of a number is 186. What is the number?
  12. 12.Diya spent ₹77, which is 50% of the pocket money. How much pocket money did Diya have, in rupees?
  13. 13.25% of a number is 98. What is the number?
  14. 14.72 is 30% of ?
  15. 15.15% of a number is 12. What is the number?
  16. 16.80% of a number is 316. What is the number?
  17. 17.40% of a number is 72. What is the number?
  18. 18.120 is 60% of ?
  19. 19.48 is 50% of ?
  20. 20.60% of a number is 213. What is the number?
  21. 21.25% of a number is 45. What is the number?
  22. 22.80% of a number is 48. What is the number?
  23. 23.Dev spent ₹27, which is 12% of the pocket money. How much pocket money did Dev have, in rupees?
  24. 24.Anaya spent ₹18, which is 12% of the pocket money. How much pocket money did Anaya have, in rupees?
  25. 25.20% of a number is 24. What is the number?
  26. 26.15% of a number is 57. What is the number?
  27. 27.Aarav spent ₹12, which is 12% of the pocket money. How much pocket money did Aarav have, in rupees?
  28. 28.25% of a number is 7. What is the number?
  29. 29.Meera spent ₹213, which is 60% of the pocket money. How much pocket money did Meera have, in rupees?
  30. 30.10% of a number is 5. What is the number?
  31. 31.8 is 5% of ?
  32. 32.50% of a number is 7. What is the number?
  33. 33.50% of a number is 20. What is the number?
  34. 34.Arjun spent ₹90, which is 30% of the pocket money. How much pocket money did Arjun have, in rupees?
  35. 35.Kabir spent ₹71, which is 20% of the pocket money. How much pocket money did Kabir have, in rupees?
  36. 36.60% of a number is 48. What is the number?
  37. 37.171 is 60% of ?
  38. 38.25% of a number is 57. What is the number?
  39. 39.Anaya spent ₹17, which is 25% of the pocket money. How much pocket money did Anaya have, in rupees?
  40. 40.Meera spent ₹114, which is 60% of the pocket money. How much pocket money did Meera have, in rupees?

Answer key

  1. 190
  2. 336
  3. 288
  4. 325
  5. 120
  6. 48
  7. 105
  8. 325
  9. 170
  10. 210
  11. 310
  12. 154
  13. 392
  14. 240
  15. 80
  16. 395
  17. 180
  18. 200
  19. 96
  20. 355
  21. 180
  22. 60
  23. 225
  24. 150
  25. 120
  26. 380
  27. 100
  28. 28
  29. 355
  30. 50
  31. 160
  32. 14
  33. 40
  34. 300
  35. 355
  36. 80
  37. 285
  38. 228
  39. 68
  40. 190

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