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Percentage lesson 9: Find the whole from a percent · Set 176 · 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. 1.15% of a number is 27. What is the number?
  2. 2.Arjun spent ₹42, which is 50% of the pocket money. How much pocket money did Arjun have, in rupees?
  3. 3.Aarav spent ₹42, which is 20% of the pocket money. How much pocket money did Aarav have, in rupees?
  4. 4.Ishaan spent ₹2, which is 10% of the pocket money. How much pocket money did Ishaan have, in rupees?
  5. 5.Anaya spent ₹84, which is 80% of the pocket money. How much pocket money did Anaya have, in rupees?
  6. 6.40% of a number is 6. What is the number?
  7. 7.256 is 80% of ?
  8. 8.9 is 12% of ?
  9. 9.Dev spent ₹18, which is 15% of the pocket money. How much pocket money did Dev have, in rupees?
  10. 10.30% of a number is 3. What is the number?
  11. 11.Diya spent ₹21, which is 15% of the pocket money. How much pocket money did Diya have, in rupees?
  12. 12.5% of a number is 17. What is the number?
  13. 13.Aarav spent ₹60, which is 15% of the pocket money. How much pocket money did Aarav have, in rupees?
  14. 14.5% of a number is 10. What is the number?
  15. 15.30% of a number is 30. What is the number?
  16. 16.116 is 80% of ?
  17. 17.4 is 5% of ?
  18. 18.40% of a number is 160. What is the number?
  19. 19.5 is 20% of ?
  20. 20.36 is 12% of ?
  21. 21.75% of a number is 87. What is the number?
  22. 22.9 is 5% of ?
  23. 23.Riya spent ₹44, which is 40% of the pocket money. How much pocket money did Riya have, in rupees?
  24. 24.75% of a number is 93. What is the number?
  25. 25.5% of a number is 11. What is the number?
  26. 26.21 is 12% of ?
  27. 27.80% of a number is 168. What is the number?
  28. 28.117 is 60% of ?
  29. 29.Riya spent ₹24, which is 10% of the pocket money. How much pocket money did Riya have, in rupees?
  30. 30.25% of a number is 46. What is the number?
  31. 31.75% of a number is 117. What is the number?
  32. 32.39 is 12% of ?
  33. 33.10% of a number is 36. What is the number?
  34. 34.10% of a number is 19. What is the number?
  35. 35.54 is 30% of ?
  36. 36.75% of a number is 135. What is the number?
  37. 37.32 is 80% of ?
  38. 38.Anaya spent ₹138, which is 75% of the pocket money. How much pocket money did Anaya have, in rupees?
  39. 39.9 is 10% of ?
  40. 40.80% of a number is 188. What is the number?

Answer key

  1. 180
  2. 84
  3. 210
  4. 20
  5. 105
  6. 15
  7. 320
  8. 75
  9. 120
  10. 10
  11. 140
  12. 340
  13. 400
  14. 200
  15. 100
  16. 145
  17. 80
  18. 400
  19. 25
  20. 300
  21. 116
  22. 180
  23. 110
  24. 124
  25. 220
  26. 175
  27. 210
  28. 195
  29. 240
  30. 184
  31. 156
  32. 325
  33. 360
  34. 190
  35. 180
  36. 180
  37. 40
  38. 184
  39. 90
  40. 235

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