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Percentage lesson 9: Find the whole from a percent · Set 492 · 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. 1.60% of a number is 81. What is the number?
  2. 2.25% of a number is 78. What is the number?
  3. 3.Rohan spent ₹105, which is 75% of the pocket money. How much pocket money did Rohan have, in rupees?
  4. 4.32 is 10% of ?
  5. 5.Rohan spent ₹224, which is 80% of the pocket money. How much pocket money did Rohan have, in rupees?
  6. 6.20% of a number is 13. What is the number?
  7. 7.50% of a number is 127. What is the number?
  8. 8.30% of a number is 45. What is the number?
  9. 9.10% of a number is 31. What is the number?
  10. 10.Rohan spent ₹165, which is 75% of the pocket money. How much pocket money did Rohan have, in rupees?
  11. 11.15 is 12% of ?
  12. 12.25% of a number is 94. What is the number?
  13. 13.Diya spent ₹15, which is 10% of the pocket money. How much pocket money did Diya have, in rupees?
  14. 14.297 is 75% of ?
  15. 15.156 is 80% of ?
  16. 16.93 is 75% of ?
  17. 17.15% of a number is 24. What is the number?
  18. 18.40% of a number is 40. What is the number?
  19. 19.42 is 12% of ?
  20. 20.5% of a number is 3. What is the number?
  21. 21.19 is 5% of ?
  22. 22.50% of a number is 5. What is the number?
  23. 23.80% of a number is 300. What is the number?
  24. 24.80% of a number is 280. What is the number?
  25. 25.30% of a number is 6. What is the number?
  26. 26.40% of a number is 136. What is the number?
  27. 27.Anaya spent ₹9, which is 12% of the pocket money. How much pocket money did Anaya have, in rupees?
  28. 28.80% of a number is 60. What is the number?
  29. 29.15% of a number is 39. What is the number?
  30. 30.50% of a number is 94. What is the number?
  31. 31.57 is 15% of ?
  32. 32.91 is 25% of ?
  33. 33.Riya spent ₹33, which is 25% of the pocket money. How much pocket money did Riya have, in rupees?
  34. 34.30% of a number is 3. What is the number?
  35. 35.25% of a number is 21. What is the number?
  36. 36.5% of a number is 7. What is the number?
  37. 37.16 is 40% of ?
  38. 38.12 is 12% of ?
  39. 39.Dev spent ₹63, which is 25% of the pocket money. How much pocket money did Dev have, in rupees?
  40. 40.28 is 10% of ?

Answer key

  1. 135
  2. 312
  3. 140
  4. 320
  5. 280
  6. 65
  7. 254
  8. 150
  9. 310
  10. 220
  11. 125
  12. 376
  13. 150
  14. 396
  15. 195
  16. 124
  17. 160
  18. 100
  19. 350
  20. 60
  21. 380
  22. 10
  23. 375
  24. 350
  25. 20
  26. 340
  27. 75
  28. 75
  29. 260
  30. 188
  31. 380
  32. 364
  33. 132
  34. 10
  35. 84
  36. 140
  37. 40
  38. 100
  39. 252
  40. 280

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