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Percentage lesson 9: Find the whole from a percent · Set 283 · 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.Arjun spent ₹12, which is 15% of the pocket money. How much pocket money did Arjun have, in rupees?
  2. 2.62 is 25% of ?
  3. 3.Riya spent ₹60, which is 15% of the pocket money. How much pocket money did Riya have, in rupees?
  4. 4.Isha spent ₹18, which is 10% of the pocket money. How much pocket money did Isha have, in rupees?
  5. 5.40 is 50% of ?
  6. 6.Riya spent ₹35, which is 10% of the pocket money. How much pocket money did Riya have, in rupees?
  7. 7.196 is 50% of ?
  8. 8.Dev spent ₹20, which is 10% of the pocket money. How much pocket money did Dev have, in rupees?
  9. 9.152 is 40% of ?
  10. 10.Kabir spent ₹15, which is 20% of the pocket money. How much pocket money did Kabir have, in rupees?
  11. 11.Arjun spent ₹140, which is 40% of the pocket money. How much pocket money did Arjun have, in rupees?
  12. 12.25% of a number is 7. What is the number?
  13. 13.20% of a number is 64. What is the number?
  14. 14.186 is 60% of ?
  15. 15.Riya spent ₹12, which is 5% of the pocket money. How much pocket money did Riya have, in rupees?
  16. 16.30% of a number is 69. What is the number?
  17. 17.80% of a number is 8. What is the number?
  18. 18.Sara spent ₹21, which is 15% of the pocket money. How much pocket money did Sara have, in rupees?
  19. 19.Riya spent ₹138, which is 60% of the pocket money. How much pocket money did Riya have, in rupees?
  20. 20.20% of a number is 22. What is the number?
  21. 21.Riya spent ₹117, which is 60% of the pocket money. How much pocket money did Riya have, in rupees?
  22. 22.Diya spent ₹42, which is 40% of the pocket money. How much pocket money did Diya have, in rupees?
  23. 23.15% of a number is 36. What is the number?
  24. 24.Anaya spent ₹36, which is 10% of the pocket money. How much pocket money did Anaya have, in rupees?
  25. 25.15% of a number is 12. What is the number?
  26. 26.15 is 12% of ?
  27. 27.Ishaan spent ₹112, which is 80% of the pocket money. How much pocket money did Ishaan have, in rupees?
  28. 28.Arjun spent ₹90, which is 50% of the pocket money. How much pocket money did Arjun have, in rupees?
  29. 29.15% of a number is 42. What is the number?
  30. 30.Arjun spent ₹109, which is 50% of the pocket money. How much pocket money did Arjun have, in rupees?
  31. 31.50% of a number is 17. What is the number?
  32. 32.60% of a number is 198. What is the number?
  33. 33.102 is 30% of ?
  34. 34.53 is 20% of ?
  35. 35.72 is 30% of ?
  36. 36.50% of a number is 161. What is the number?
  37. 37.Diya spent ₹39, which is 60% of the pocket money. How much pocket money did Diya have, in rupees?
  38. 38.Riya spent ₹18, which is 5% of the pocket money. How much pocket money did Riya have, in rupees?
  39. 39.Sara spent ₹7, which is 20% of the pocket money. How much pocket money did Sara have, in rupees?
  40. 40.13 is 5% of ?

Answer key

  1. 80
  2. 248
  3. 400
  4. 180
  5. 80
  6. 350
  7. 392
  8. 200
  9. 380
  10. 75
  11. 350
  12. 28
  13. 320
  14. 310
  15. 240
  16. 230
  17. 10
  18. 140
  19. 230
  20. 110
  21. 195
  22. 105
  23. 240
  24. 360
  25. 80
  26. 125
  27. 140
  28. 180
  29. 280
  30. 218
  31. 34
  32. 330
  33. 340
  34. 265
  35. 240
  36. 322
  37. 65
  38. 360
  39. 35
  40. 260

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