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Percentage lesson 9: Find the whole from a percent · Set 371 · 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.Isha spent ₹40, which is 10% of the pocket money. How much pocket money did Isha have, in rupees?
  2. 2.45 is 12% of ?
  3. 3.Arjun spent ₹8, which is 20% of the pocket money. How much pocket money did Arjun have, in rupees?
  4. 4.78 is 30% of ?
  5. 5.282 is 75% of ?
  6. 6.11 is 5% of ?
  7. 7.50% of a number is 199. What is the number?
  8. 8.92 is 40% of ?
  9. 9.24 is 15% of ?
  10. 10.9 is 15% of ?
  11. 11.25% of a number is 37. What is the number?
  12. 12.Dev spent ₹24, which is 50% of the pocket money. How much pocket money did Dev have, in rupees?
  13. 13.123 is 50% of ?
  14. 14.Rohan spent ₹111, which is 30% of the pocket money. How much pocket money did Rohan have, in rupees?
  15. 15.Isha spent ₹22, which is 20% of the pocket money. How much pocket money did Isha have, in rupees?
  16. 16.60% of a number is 9. What is the number?
  17. 17.Isha spent ₹59, which is 20% of the pocket money. How much pocket money did Isha have, in rupees?
  18. 18.Rohan spent ₹12, which is 12% of the pocket money. How much pocket money did Rohan have, in rupees?
  19. 19.30% of a number is 6. What is the number?
  20. 20.Riya spent ₹28, which is 25% of the pocket money. How much pocket money did Riya have, in rupees?
  21. 21.12% of a number is 3. What is the number?
  22. 22.80% of a number is 316. What is the number?
  23. 23.10% of a number is 32. What is the number?
  24. 24.29 is 50% of ?
  25. 25.5% of a number is 3. What is the number?
  26. 26.Kabir spent ₹144, which is 40% of the pocket money. How much pocket money did Kabir have, in rupees?
  27. 27.Riya spent ₹3, which is 15% of the pocket money. How much pocket money did Riya have, in rupees?
  28. 28.20% of a number is 22. What is the number?
  29. 29.3 is 15% of ?
  30. 30.74 is 20% of ?
  31. 31.25% of a number is 15. What is the number?
  32. 32.177 is 60% of ?
  33. 33.12% of a number is 6. What is the number?
  34. 34.Rohan spent ₹189, which is 60% of the pocket money. How much pocket money did Rohan have, in rupees?
  35. 35.40% of a number is 98. What is the number?
  36. 36.40% of a number is 156. What is the number?
  37. 37.30% of a number is 39. What is the number?
  38. 38.Riya spent ₹56, which is 80% of the pocket money. How much pocket money did Riya have, in rupees?
  39. 39.Anaya spent ₹154, which is 40% of the pocket money. How much pocket money did Anaya have, in rupees?
  40. 40.10% of a number is 14. What is the number?

Answer key

  1. 400
  2. 375
  3. 40
  4. 260
  5. 376
  6. 220
  7. 398
  8. 230
  9. 160
  10. 60
  11. 148
  12. 48
  13. 246
  14. 370
  15. 110
  16. 15
  17. 295
  18. 100
  19. 20
  20. 112
  21. 25
  22. 395
  23. 320
  24. 58
  25. 60
  26. 360
  27. 20
  28. 110
  29. 20
  30. 370
  31. 60
  32. 295
  33. 50
  34. 315
  35. 245
  36. 390
  37. 130
  38. 70
  39. 385
  40. 140

Free percentage lessons, practice and worksheets at talentjr.in/how-to-calculate-percentage