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Percentage lesson 9: Find the whole from a percent · Set 5 · 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. 1.25% of a number is 92. What is the number?
  2. 2.10% of a number is 4. What is the number?
  3. 3.Meera spent ₹69, which is 30% of the pocket money. How much pocket money did Meera have, in rupees?
  4. 4.28 is 20% of ?
  5. 5.87 is 25% of ?
  6. 6.Rohan spent ₹6, which is 10% of the pocket money. How much pocket money did Rohan have, in rupees?
  7. 7.21 is 15% of ?
  8. 8.Dev spent ₹78, which is 75% of the pocket money. How much pocket money did Dev have, in rupees?
  9. 9.Riya spent ₹30, which is 30% of the pocket money. How much pocket money did Riya have, in rupees?
  10. 10.Arjun spent ₹30, which is 10% of the pocket money. How much pocket money did Arjun have, in rupees?
  11. 11.50% of a number is 7. What is the number?
  12. 12.12% of a number is 15. What is the number?
  13. 13.Aarav spent ₹39, which is 15% of the pocket money. How much pocket money did Aarav have, in rupees?
  14. 14.19 is 10% of ?
  15. 15.Aarav spent ₹24, which is 75% of the pocket money. How much pocket money did Aarav have, in rupees?
  16. 16.15% of a number is 36. What is the number?
  17. 17.18 is 12% of ?
  18. 18.120 is 40% of ?
  19. 19.40% of a number is 22. What is the number?
  20. 20.15 is 12% of ?
  21. 21.36 is 75% of ?
  22. 22.Ishaan spent ₹1, which is 10% of the pocket money. How much pocket money did Ishaan have, in rupees?
  23. 23.52 is 40% of ?
  24. 24.21 is 20% of ?
  25. 25.Riya spent ₹33, which is 10% of the pocket money. How much pocket money did Riya have, in rupees?
  26. 26.60% of a number is 111. What is the number?
  27. 27.33 is 12% of ?
  28. 28.Rohan spent ₹9, which is 12% of the pocket money. How much pocket money did Rohan have, in rupees?
  29. 29.60% of a number is 201. What is the number?
  30. 30.10% of a number is 21. What is the number?
  31. 31.Ishaan spent ₹20, which is 25% of the pocket money. How much pocket money did Ishaan have, in rupees?
  32. 32.30% of a number is 90. What is the number?
  33. 33.60% of a number is 21. What is the number?
  34. 34.Anaya spent ₹117, which is 30% of the pocket money. How much pocket money did Anaya have, in rupees?
  35. 35.20% of a number is 38. What is the number?
  36. 36.Isha spent ₹70, which is 25% of the pocket money. How much pocket money did Isha have, in rupees?
  37. 37.147 is 60% of ?
  38. 38.Arjun spent ₹42, which is 12% of the pocket money. How much pocket money did Arjun have, in rupees?
  39. 39.80% of a number is 112. What is the number?
  40. 40.57 is 15% of ?

Answer key

  1. 368
  2. 40
  3. 230
  4. 140
  5. 348
  6. 60
  7. 140
  8. 104
  9. 100
  10. 300
  11. 14
  12. 125
  13. 260
  14. 190
  15. 32
  16. 240
  17. 150
  18. 300
  19. 55
  20. 125
  21. 48
  22. 10
  23. 130
  24. 105
  25. 330
  26. 185
  27. 275
  28. 75
  29. 335
  30. 210
  31. 80
  32. 300
  33. 35
  34. 390
  35. 190
  36. 280
  37. 245
  38. 350
  39. 140
  40. 380

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