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Percentage lesson 9: Find the whole from a percent · Set 787 · 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.Meera spent ₹31, which is 25% of the pocket money. How much pocket money did Meera have, in rupees?
  2. 2.Kabir spent ₹216, which is 60% of the pocket money. How much pocket money did Kabir have, in rupees?
  3. 3.15% of a number is 33. What is the number?
  4. 4.Meera spent ₹128, which is 80% of the pocket money. How much pocket money did Meera have, in rupees?
  5. 5.Anaya spent ₹8, which is 80% of the pocket money. How much pocket money did Anaya have, in rupees?
  6. 6.50% of a number is 53. What is the number?
  7. 7.30% of a number is 6. What is the number?
  8. 8.12 is 25% of ?
  9. 9.10% of a number is 28. What is the number?
  10. 10.135 is 50% of ?
  11. 11.123 is 75% of ?
  12. 12.40% of a number is 20. What is the number?
  13. 13.Sara spent ₹41, which is 20% of the pocket money. How much pocket money did Sara have, in rupees?
  14. 14.60% of a number is 159. What is the number?
  15. 15.Dev spent ₹10, which is 10% of the pocket money. How much pocket money did Dev have, in rupees?
  16. 16.10% of a number is 35. What is the number?
  17. 17.Arjun spent ₹48, which is 15% of the pocket money. How much pocket money did Arjun have, in rupees?
  18. 18.25% of a number is 45. What is the number?
  19. 19.Isha spent ₹96, which is 50% of the pocket money. How much pocket money did Isha have, in rupees?
  20. 20.15% of a number is 30. What is the number?
  21. 21.Rohan spent ₹8, which is 5% of the pocket money. How much pocket money did Rohan have, in rupees?
  22. 22.25% of a number is 32. What is the number?
  23. 23.Arjun spent ₹18, which is 10% of the pocket money. How much pocket money did Arjun have, in rupees?
  24. 24.Riya spent ₹45, which is 15% of the pocket money. How much pocket money did Riya have, in rupees?
  25. 25.Arjun spent ₹276, which is 80% of the pocket money. How much pocket money did Arjun have, in rupees?
  26. 26.80% of a number is 76. What is the number?
  27. 27.Aarav spent ₹136, which is 40% of the pocket money. How much pocket money did Aarav have, in rupees?
  28. 28.13 is 10% of ?
  29. 29.60% of a number is 93. What is the number?
  30. 30.Riya spent ₹90, which is 25% of the pocket money. How much pocket money did Riya have, in rupees?
  31. 31.Meera spent ₹51, which is 30% of the pocket money. How much pocket money did Meera have, in rupees?
  32. 32.15% of a number is 48. What is the number?
  33. 33.Diya spent ₹180, which is 75% of the pocket money. How much pocket money did Diya have, in rupees?
  34. 34.Isha spent ₹129, which is 75% of the pocket money. How much pocket money did Isha have, in rupees?
  35. 35.30 is 15% of ?
  36. 36.Meera spent ₹33, which is 30% of the pocket money. How much pocket money did Meera have, in rupees?
  37. 37.9 is 10% of ?
  38. 38.50% of a number is 131. What is the number?
  39. 39.60% of a number is 72. What is the number?
  40. 40.15% of a number is 18. What is the number?

Answer key

  1. 124
  2. 360
  3. 220
  4. 160
  5. 10
  6. 106
  7. 20
  8. 48
  9. 280
  10. 270
  11. 164
  12. 50
  13. 205
  14. 265
  15. 100
  16. 350
  17. 320
  18. 180
  19. 192
  20. 200
  21. 160
  22. 128
  23. 180
  24. 300
  25. 345
  26. 95
  27. 340
  28. 130
  29. 155
  30. 360
  31. 170
  32. 320
  33. 240
  34. 172
  35. 200
  36. 110
  37. 90
  38. 262
  39. 120
  40. 120

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