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Percentage lesson 9: Find the whole from a percent · Set 997 · 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.Riya spent ₹33, which is 12% of the pocket money. How much pocket money did Riya have, in rupees?
  2. 2.12% of a number is 24. What is the number?
  3. 3.64 is 50% of ?
  4. 4.Sara spent ₹30, which is 75% of the pocket money. How much pocket money did Sara have, in rupees?
  5. 5.80% of a number is 136. What is the number?
  6. 6.Dev spent ₹47, which is 25% of the pocket money. How much pocket money did Dev have, in rupees?
  7. 7.204 is 60% of ?
  8. 8.Isha spent ₹92, which is 50% of the pocket money. How much pocket money did Isha have, in rupees?
  9. 9.Riya spent ₹212, which is 80% of the pocket money. How much pocket money did Riya have, in rupees?
  10. 10.15% of a number is 24. What is the number?
  11. 11.10% of a number is 4. What is the number?
  12. 12.Ishaan spent ₹48, which is 75% of the pocket money. How much pocket money did Ishaan have, in rupees?
  13. 13.40% of a number is 56. What is the number?
  14. 14.30% of a number is 84. What is the number?
  15. 15.80% of a number is 120. What is the number?
  16. 16.43 is 20% of ?
  17. 17.Aarav spent ₹60, which is 15% of the pocket money. How much pocket money did Aarav have, in rupees?
  18. 18.15% of a number is 33. What is the number?
  19. 19.80% of a number is 140. What is the number?
  20. 20.Sara spent ₹6, which is 12% of the pocket money. How much pocket money did Sara have, in rupees?
  21. 21.50 is 25% of ?
  22. 22.5% of a number is 6. What is the number?
  23. 23.Meera spent ₹58, which is 25% of the pocket money. How much pocket money did Meera have, in rupees?
  24. 24.Meera spent ₹48, which is 80% of the pocket money. How much pocket money did Meera have, in rupees?
  25. 25.Ishaan spent ₹39, which is 12% of the pocket money. How much pocket money did Ishaan have, in rupees?
  26. 26.6 is 12% of ?
  27. 27.40% of a number is 66. What is the number?
  28. 28.Diya spent ₹96, which is 75% of the pocket money. How much pocket money did Diya have, in rupees?
  29. 29.40% of a number is 14. What is the number?
  30. 30.12% of a number is 18. What is the number?
  31. 31.52 is 20% of ?
  32. 32.Aarav spent ₹51, which is 25% of the pocket money. How much pocket money did Aarav have, in rupees?
  33. 33.Aarav spent ₹158, which is 40% of the pocket money. How much pocket money did Aarav have, in rupees?
  34. 34.10% of a number is 8. What is the number?
  35. 35.Diya spent ₹28, which is 20% of the pocket money. How much pocket money did Diya have, in rupees?
  36. 36.40% of a number is 38. What is the number?
  37. 37.20% of a number is 23. What is the number?
  38. 38.Anaya spent ₹10, which is 40% of the pocket money. How much pocket money did Anaya have, in rupees?
  39. 39.Dev spent ₹30, which is 10% of the pocket money. How much pocket money did Dev have, in rupees?
  40. 40.Aarav spent ₹108, which is 30% of the pocket money. How much pocket money did Aarav have, in rupees?

Answer key

  1. 275
  2. 200
  3. 128
  4. 40
  5. 170
  6. 188
  7. 340
  8. 184
  9. 265
  10. 160
  11. 40
  12. 64
  13. 140
  14. 280
  15. 150
  16. 215
  17. 400
  18. 220
  19. 175
  20. 50
  21. 200
  22. 120
  23. 232
  24. 60
  25. 325
  26. 50
  27. 165
  28. 128
  29. 35
  30. 150
  31. 260
  32. 204
  33. 395
  34. 80
  35. 140
  36. 95
  37. 115
  38. 25
  39. 300
  40. 360

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