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Percentage lesson 9: Find the whole from a percent · Set 536 · 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.Diya spent ₹3, which is 60% of the pocket money. How much pocket money did Diya have, in rupees?
  2. 2.60% of a number is 228. What is the number?
  3. 3.Riya spent ₹24, which is 50% of the pocket money. How much pocket money did Riya have, in rupees?
  4. 4.Dev spent ₹28, which is 80% of the pocket money. How much pocket money did Dev have, in rupees?
  5. 5.30% of a number is 72. What is the number?
  6. 6.50% of a number is 101. What is the number?
  7. 7.10% of a number is 35. What is the number?
  8. 8.90 is 30% of ?
  9. 9.Riya spent ₹18, which is 10% of the pocket money. How much pocket money did Riya have, in rupees?
  10. 10.Arjun spent ₹51, which is 60% of the pocket money. How much pocket money did Arjun have, in rupees?
  11. 11.Sara spent ₹195, which is 60% of the pocket money. How much pocket money did Sara have, in rupees?
  12. 12.Arjun spent ₹57, which is 75% of the pocket money. How much pocket money did Arjun have, in rupees?
  13. 13.320 is 80% of ?
  14. 14.66 is 30% of ?
  15. 15.Ishaan spent ₹14, which is 10% of the pocket money. How much pocket money did Ishaan have, in rupees?
  16. 16.Rohan spent ₹58, which is 25% of the pocket money. How much pocket money did Rohan have, in rupees?
  17. 17.12% of a number is 39. What is the number?
  18. 18.50% of a number is 40. What is the number?
  19. 19.25 is 50% of ?
  20. 20.24 is 75% of ?
  21. 21.50% of a number is 95. What is the number?
  22. 22.25% of a number is 75. What is the number?
  23. 23.10% of a number is 38. What is the number?
  24. 24.12 is 12% of ?
  25. 25.Riya spent ₹16, which is 5% of the pocket money. How much pocket money did Riya have, in rupees?
  26. 26.Isha spent ₹30, which is 50% of the pocket money. How much pocket money did Isha have, in rupees?
  27. 27.Dev spent ₹51, which is 25% of the pocket money. How much pocket money did Dev have, in rupees?
  28. 28.60 is 50% of ?
  29. 29.Sara spent ₹12, which is 15% of the pocket money. How much pocket money did Sara have, in rupees?
  30. 30.Sara spent ₹13, which is 5% of the pocket money. How much pocket money did Sara have, in rupees?
  31. 31.60% of a number is 201. What is the number?
  32. 32.Meera spent ₹7, which is 25% of the pocket money. How much pocket money did Meera have, in rupees?
  33. 33.Aarav spent ₹93, which is 60% of the pocket money. How much pocket money did Aarav have, in rupees?
  34. 34.51 is 30% of ?
  35. 35.80% of a number is 8. What is the number?
  36. 36.Meera spent ₹12, which is 15% of the pocket money. How much pocket money did Meera have, in rupees?
  37. 37.53 is 50% of ?
  38. 38.Kabir spent ₹78, which is 60% of the pocket money. How much pocket money did Kabir have, in rupees?
  39. 39.12% of a number is 30. What is the number?
  40. 40.75% of a number is 213. What is the number?

Answer key

  1. 5
  2. 380
  3. 48
  4. 35
  5. 240
  6. 202
  7. 350
  8. 300
  9. 180
  10. 85
  11. 325
  12. 76
  13. 400
  14. 220
  15. 140
  16. 232
  17. 325
  18. 80
  19. 50
  20. 32
  21. 190
  22. 300
  23. 380
  24. 100
  25. 320
  26. 60
  27. 204
  28. 120
  29. 80
  30. 260
  31. 335
  32. 28
  33. 155
  34. 170
  35. 10
  36. 80
  37. 106
  38. 130
  39. 250
  40. 284

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