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Percentage lesson 9: Find the whole from a percent · Set 349 · 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.Kabir spent ₹9, which is 12% of the pocket money. How much pocket money did Kabir have, in rupees?
  2. 2.Arjun spent ₹39, which is 30% of the pocket money. How much pocket money did Arjun have, in rupees?
  3. 3.75% of a number is 198. What is the number?
  4. 4.Isha spent ₹65, which is 20% of the pocket money. How much pocket money did Isha have, in rupees?
  5. 5.40% of a number is 100. What is the number?
  6. 6.Riya spent ₹3, which is 30% of the pocket money. How much pocket money did Riya have, in rupees?
  7. 7.40% of a number is 50. What is the number?
  8. 8.Riya spent ₹60, which is 15% of the pocket money. How much pocket money did Riya have, in rupees?
  9. 9.40% of a number is 12. What is the number?
  10. 10.129 is 75% of ?
  11. 11.35 is 25% of ?
  12. 12.75% of a number is 3. What is the number?
  13. 13.60% of a number is 126. What is the number?
  14. 14.30% of a number is 27. What is the number?
  15. 15.Ishaan spent ₹50, which is 20% of the pocket money. How much pocket money did Ishaan have, in rupees?
  16. 16.Rohan spent ₹1, which is 10% of the pocket money. How much pocket money did Rohan have, in rupees?
  17. 17.16 is 10% of ?
  18. 18.Anaya spent ₹129, which is 60% of the pocket money. How much pocket money did Anaya have, in rupees?
  19. 19.Diya spent ₹9, which is 20% of the pocket money. How much pocket money did Diya have, in rupees?
  20. 20.16 is 25% of ?
  21. 21.Riya spent ₹45, which is 60% of the pocket money. How much pocket money did Riya have, in rupees?
  22. 22.Sara spent ₹54, which is 20% of the pocket money. How much pocket money did Sara have, in rupees?
  23. 23.33 is 20% of ?
  24. 24.75% of a number is 207. What is the number?
  25. 25.80% of a number is 64. What is the number?
  26. 26.12% of a number is 48. What is the number?
  27. 27.102 is 75% of ?
  28. 28.12% of a number is 9. What is the number?
  29. 29.Rohan spent ₹15, which is 5% of the pocket money. How much pocket money did Rohan have, in rupees?
  30. 30.Ishaan spent ₹42, which is 15% of the pocket money. How much pocket money did Ishaan have, in rupees?
  31. 31.18 is 15% of ?
  32. 32.Meera spent ₹25, which is 20% of the pocket money. How much pocket money did Meera have, in rupees?
  33. 33.16 is 50% of ?
  34. 34.Ishaan spent ₹36, which is 75% of the pocket money. How much pocket money did Ishaan have, in rupees?
  35. 35.Riya spent ₹5, which is 10% of the pocket money. How much pocket money did Riya have, in rupees?
  36. 36.Arjun spent ₹56, which is 25% of the pocket money. How much pocket money did Arjun have, in rupees?
  37. 37.192 is 75% of ?
  38. 38.Arjun spent ₹210, which is 60% of the pocket money. How much pocket money did Arjun have, in rupees?
  39. 39.12% of a number is 15. What is the number?
  40. 40.3 is 12% of ?

Answer key

  1. 75
  2. 130
  3. 264
  4. 325
  5. 250
  6. 10
  7. 125
  8. 400
  9. 30
  10. 172
  11. 140
  12. 4
  13. 210
  14. 90
  15. 250
  16. 10
  17. 160
  18. 215
  19. 45
  20. 64
  21. 75
  22. 270
  23. 165
  24. 276
  25. 80
  26. 400
  27. 136
  28. 75
  29. 300
  30. 280
  31. 120
  32. 125
  33. 32
  34. 48
  35. 50
  36. 224
  37. 256
  38. 350
  39. 125
  40. 25

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