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Percentage lesson 9: Find the whole from a percent · Set 33 · 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. 1.40% of a number is 18. What is the number?
  2. 2.Rohan spent ₹39, which is 10% of the pocket money. How much pocket money did Rohan have, in rupees?
  3. 3.25 is 10% of ?
  4. 4.Isha spent ₹48, which is 15% of the pocket money. How much pocket money did Isha have, in rupees?
  5. 5.5 is 10% of ?
  6. 6.75% of a number is 249. What is the number?
  7. 7.Diya spent ₹232, which is 80% of the pocket money. How much pocket money did Diya have, in rupees?
  8. 8.Kabir spent ₹5, which is 5% of the pocket money. How much pocket money did Kabir have, in rupees?
  9. 9.187 is 50% of ?
  10. 10.16 is 25% of ?
  11. 11.Ishaan spent ₹24, which is 30% of the pocket money. How much pocket money did Ishaan have, in rupees?
  12. 12.56 is 50% of ?
  13. 13.60% of a number is 72. What is the number?
  14. 14.50% of a number is 16. What is the number?
  15. 15.Ishaan spent ₹27, which is 25% of the pocket money. How much pocket money did Ishaan have, in rupees?
  16. 16.20% of a number is 61. What is the number?
  17. 17.25% of a number is 61. What is the number?
  18. 18.Isha spent ₹41, which is 25% of the pocket money. How much pocket money did Isha have, in rupees?
  19. 19.142 is 50% of ?
  20. 20.Sara spent ₹57, which is 15% of the pocket money. How much pocket money did Sara have, in rupees?
  21. 21.10% of a number is 15. What is the number?
  22. 22.Kabir spent ₹94, which is 25% of the pocket money. How much pocket money did Kabir have, in rupees?
  23. 23.3 is 5% of ?
  24. 24.21 is 20% of ?
  25. 25.80% of a number is 320. What is the number?
  26. 26.10% of a number is 34. What is the number?
  27. 27.25% of a number is 33. What is the number?
  28. 28.24 is 12% of ?
  29. 29.Ishaan spent ₹84, which is 30% of the pocket money. How much pocket money did Ishaan have, in rupees?
  30. 30.147 is 50% of ?
  31. 31.Dev spent ₹41, which is 25% of the pocket money. How much pocket money did Dev have, in rupees?
  32. 32.Sara spent ₹24, which is 25% of the pocket money. How much pocket money did Sara have, in rupees?
  33. 33.75% of a number is 210. What is the number?
  34. 34.Diya spent ₹48, which is 60% of the pocket money. How much pocket money did Diya have, in rupees?
  35. 35.Kabir spent ₹68, which is 40% of the pocket money. How much pocket money did Kabir have, in rupees?
  36. 36.80% of a number is 8. What is the number?
  37. 37.14 is 40% of ?
  38. 38.195 is 75% of ?
  39. 39.61 is 25% of ?
  40. 40.88 is 25% of ?

Answer key

  1. 45
  2. 390
  3. 250
  4. 320
  5. 50
  6. 332
  7. 290
  8. 100
  9. 374
  10. 64
  11. 80
  12. 112
  13. 120
  14. 32
  15. 108
  16. 305
  17. 244
  18. 164
  19. 284
  20. 380
  21. 150
  22. 376
  23. 60
  24. 105
  25. 400
  26. 340
  27. 132
  28. 200
  29. 280
  30. 294
  31. 164
  32. 96
  33. 280
  34. 80
  35. 170
  36. 10
  37. 35
  38. 260
  39. 244
  40. 352

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