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Percentage lesson 9: Find the whole from a percent · Set 226 · 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. 1.50% of a number is 49. What is the number?
  2. 2.Arjun spent ₹1, which is 5% of the pocket money. How much pocket money did Arjun have, in rupees?
  3. 3.Arjun spent ₹13, which is 5% of the pocket money. How much pocket money did Arjun have, in rupees?
  4. 4.Ishaan spent ₹1, which is 10% of the pocket money. How much pocket money did Ishaan have, in rupees?
  5. 5.Diya spent ₹83, which is 25% of the pocket money. How much pocket money did Diya have, in rupees?
  6. 6.144 is 60% of ?
  7. 7.63 is 30% of ?
  8. 8.Arjun spent ₹48, which is 15% of the pocket money. How much pocket money did Arjun have, in rupees?
  9. 9.Meera spent ₹42, which is 20% of the pocket money. How much pocket money did Meera have, in rupees?
  10. 10.39 is 10% of ?
  11. 11.Sara spent ₹77, which is 50% of the pocket money. How much pocket money did Sara have, in rupees?
  12. 12.6 is 5% of ?
  13. 13.Dev spent ₹144, which is 60% of the pocket money. How much pocket money did Dev have, in rupees?
  14. 14.Riya spent ₹48, which is 12% of the pocket money. How much pocket money did Riya have, in rupees?
  15. 15.Isha spent ₹10, which is 5% of the pocket money. How much pocket money did Isha have, in rupees?
  16. 16.60% of a number is 90. What is the number?
  17. 17.40 is 80% of ?
  18. 18.96 is 60% of ?
  19. 19.18 is 20% of ?
  20. 20.50% of a number is 103. What is the number?
  21. 21.92 is 25% of ?
  22. 22.20% of a number is 40. What is the number?
  23. 23.60% of a number is 30. What is the number?
  24. 24.60% of a number is 15. What is the number?
  25. 25.80% of a number is 8. What is the number?
  26. 26.40% of a number is 36. What is the number?
  27. 27.Meera spent ₹38, which is 10% of the pocket money. How much pocket money did Meera have, in rupees?
  28. 28.Arjun spent ₹180, which is 60% of the pocket money. How much pocket money did Arjun have, in rupees?
  29. 29.120 is 60% of ?
  30. 30.Sara spent ₹2, which is 10% of the pocket money. How much pocket money did Sara have, in rupees?
  31. 31.27 is 30% of ?
  32. 32.20% of a number is 18. What is the number?
  33. 33.51 is 60% of ?
  34. 34.Meera spent ₹73, which is 50% of the pocket money. How much pocket money did Meera have, in rupees?
  35. 35.184 is 80% of ?
  36. 36.50% of a number is 200. What is the number?
  37. 37.50% of a number is 119. What is the number?
  38. 38.24 is 60% of ?
  39. 39.10% of a number is 3. What is the number?
  40. 40.200 is 80% of ?

Answer key

  1. 98
  2. 20
  3. 260
  4. 10
  5. 332
  6. 240
  7. 210
  8. 320
  9. 210
  10. 390
  11. 154
  12. 120
  13. 240
  14. 400
  15. 200
  16. 150
  17. 50
  18. 160
  19. 90
  20. 206
  21. 368
  22. 200
  23. 50
  24. 25
  25. 10
  26. 90
  27. 380
  28. 300
  29. 200
  30. 20
  31. 90
  32. 90
  33. 85
  34. 146
  35. 230
  36. 400
  37. 238
  38. 40
  39. 30
  40. 250

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