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Percentage lesson 9: Find the whole from a percent · Set 343 · 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 3. What is the number?
  2. 2.Diya spent ₹22, which is 40% of the pocket money. How much pocket money did Diya have, in rupees?
  3. 3.10% of a number is 12. What is the number?
  4. 4.36 is 12% of ?
  5. 5.30% of a number is 75. What is the number?
  6. 6.47 is 25% of ?
  7. 7.60% of a number is 78. What is the number?
  8. 8.24 is 20% of ?
  9. 9.10% of a number is 18. What is the number?
  10. 10.24 is 10% of ?
  11. 11.21 is 10% of ?
  12. 12.Ishaan spent ₹6, which is 40% of the pocket money. How much pocket money did Ishaan have, in rupees?
  13. 13.30% of a number is 21. What is the number?
  14. 14.100 is 80% of ?
  15. 15.40% of a number is 152. What is the number?
  16. 16.10% of a number is 17. What is the number?
  17. 17.25% of a number is 21. What is the number?
  18. 18.Kabir spent ₹284, which is 80% of the pocket money. How much pocket money did Kabir have, in rupees?
  19. 19.80% of a number is 80. What is the number?
  20. 20.Meera spent ₹39, which is 30% of the pocket money. How much pocket money did Meera have, in rupees?
  21. 21.80% of a number is 116. What is the number?
  22. 22.118 is 40% of ?
  23. 23.8 is 10% of ?
  24. 24.108 is 75% of ?
  25. 25.60% of a number is 159. What is the number?
  26. 26.30% of a number is 27. What is the number?
  27. 27.20% of a number is 42. What is the number?
  28. 28.10 is 40% of ?
  29. 29.105 is 60% of ?
  30. 30.5% of a number is 8. What is the number?
  31. 31.Kabir spent ₹15, which is 60% of the pocket money. How much pocket money did Kabir have, in rupees?
  32. 32.20 is 5% of ?
  33. 33.1 is 5% of ?
  34. 34.5 is 10% of ?
  35. 35.26 is 20% of ?
  36. 36.162 is 60% of ?
  37. 37.75% of a number is 78. What is the number?
  38. 38.40% of a number is 12. What is the number?
  39. 39.20 is 80% of ?
  40. 40.28 is 25% of ?

Answer key

  1. 5
  2. 55
  3. 120
  4. 300
  5. 250
  6. 188
  7. 130
  8. 120
  9. 180
  10. 240
  11. 210
  12. 15
  13. 70
  14. 125
  15. 380
  16. 170
  17. 84
  18. 355
  19. 100
  20. 130
  21. 145
  22. 295
  23. 80
  24. 144
  25. 265
  26. 90
  27. 210
  28. 25
  29. 175
  30. 160
  31. 25
  32. 400
  33. 20
  34. 50
  35. 130
  36. 270
  37. 104
  38. 30
  39. 25
  40. 112

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