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Percentage lesson 9: Find the whole from a percent · Set 278 · 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. 1.78 is 40% of ?
  2. 2.40% of a number is 88. What is the number?
  3. 3.Anaya spent ₹45, which is 60% of the pocket money. How much pocket money did Anaya have, in rupees?
  4. 4.46 is 20% of ?
  5. 5.Riya spent ₹39, which is 15% of the pocket money. How much pocket money did Riya have, in rupees?
  6. 6.Dev spent ₹21, which is 15% of the pocket money. How much pocket money did Dev have, in rupees?
  7. 7.Isha spent ₹66, which is 20% of the pocket money. How much pocket money did Isha have, in rupees?
  8. 8.Meera spent ₹41, which is 25% of the pocket money. How much pocket money did Meera have, in rupees?
  9. 9.Sara spent ₹219, which is 60% of the pocket money. How much pocket money did Sara have, in rupees?
  10. 10.42 is 15% of ?
  11. 11.80% of a number is 288. What is the number?
  12. 12.10% of a number is 7. What is the number?
  13. 13.Rohan spent ₹6, which is 10% of the pocket money. How much pocket money did Rohan have, in rupees?
  14. 14.Isha spent ₹60, which is 30% of the pocket money. How much pocket money did Isha have, in rupees?
  15. 15.50% of a number is 185. What is the number?
  16. 16.8 is 10% of ?
  17. 17.60% of a number is 87. What is the number?
  18. 18.Meera spent ₹75, which is 75% of the pocket money. How much pocket money did Meera have, in rupees?
  19. 19.Arjun spent ₹150, which is 60% of the pocket money. How much pocket money did Arjun have, in rupees?
  20. 20.25% of a number is 93. What is the number?
  21. 21.50% of a number is 189. What is the number?
  22. 22.2 is 20% of ?
  23. 23.5% of a number is 5. What is the number?
  24. 24.80% of a number is 252. What is the number?
  25. 25.5% of a number is 6. What is the number?
  26. 26.20% of a number is 9. What is the number?
  27. 27.45 is 60% of ?
  28. 28.9 is 15% of ?
  29. 29.60% of a number is 24. What is the number?
  30. 30.Diya spent ₹264, which is 80% of the pocket money. How much pocket money did Diya have, in rupees?
  31. 31.50% of a number is 18. What is the number?
  32. 32.30% of a number is 18. What is the number?
  33. 33.Isha spent ₹51, which is 20% of the pocket money. How much pocket money did Isha have, in rupees?
  34. 34.Arjun spent ₹12, which is 5% of the pocket money. How much pocket money did Arjun have, in rupees?
  35. 35.Dev spent ₹17, which is 5% of the pocket money. How much pocket money did Dev have, in rupees?
  36. 36.Aarav spent ₹228, which is 75% of the pocket money. How much pocket money did Aarav have, in rupees?
  37. 37.Arjun spent ₹16, which is 10% of the pocket money. How much pocket money did Arjun have, in rupees?
  38. 38.Dev spent ₹10, which is 5% of the pocket money. How much pocket money did Dev have, in rupees?
  39. 39.20% of a number is 51. What is the number?
  40. 40.Ishaan spent ₹117, which is 50% of the pocket money. How much pocket money did Ishaan have, in rupees?

Answer key

  1. 195
  2. 220
  3. 75
  4. 230
  5. 260
  6. 140
  7. 330
  8. 164
  9. 365
  10. 280
  11. 360
  12. 70
  13. 60
  14. 200
  15. 370
  16. 80
  17. 145
  18. 100
  19. 250
  20. 372
  21. 378
  22. 10
  23. 100
  24. 315
  25. 120
  26. 45
  27. 75
  28. 60
  29. 40
  30. 330
  31. 36
  32. 60
  33. 255
  34. 240
  35. 340
  36. 304
  37. 160
  38. 200
  39. 255
  40. 234

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