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Percentage lesson 9: Find the whole from a percent · Set 807 · 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. 1.60% of a number is 237. What is the number?
  2. 2.Rohan spent ₹9, which is 5% of the pocket money. How much pocket money did Rohan have, in rupees?
  3. 3.255 is 75% of ?
  4. 4.34 is 10% of ?
  5. 5.118 is 50% of ?
  6. 6.20% of a number is 74. What is the number?
  7. 7.102 is 60% of ?
  8. 8.72 is 30% of ?
  9. 9.48 is 12% of ?
  10. 10.20% of a number is 34. What is the number?
  11. 11.20% of a number is 46. What is the number?
  12. 12.24 is 10% of ?
  13. 13.Ishaan spent ₹32, which is 80% of the pocket money. How much pocket money did Ishaan have, in rupees?
  14. 14.40% of a number is 58. What is the number?
  15. 15.Riya spent ₹12, which is 12% of the pocket money. How much pocket money did Riya have, in rupees?
  16. 16.Sara spent ₹67, which is 50% of the pocket money. How much pocket money did Sara have, in rupees?
  17. 17.4 is 50% of ?
  18. 18.134 is 40% of ?
  19. 19.160 is 80% of ?
  20. 20.80% of a number is 252. What is the number?
  21. 21.75% of a number is 66. What is the number?
  22. 22.15% of a number is 9. What is the number?
  23. 23.Anaya spent ₹39, which is 12% of the pocket money. How much pocket money did Anaya have, in rupees?
  24. 24.81 is 60% of ?
  25. 25.118 is 40% of ?
  26. 26.138 is 75% of ?
  27. 27.Ishaan spent ₹308, which is 80% of the pocket money. How much pocket money did Ishaan have, in rupees?
  28. 28.60% of a number is 42. What is the number?
  29. 29.Isha spent ₹192, which is 75% of the pocket money. How much pocket money did Isha have, in rupees?
  30. 30.Kabir spent ₹42, which is 12% of the pocket money. How much pocket money did Kabir have, in rupees?
  31. 31.60% of a number is 156. What is the number?
  32. 32.Dev spent ₹7, which is 5% of the pocket money. How much pocket money did Dev have, in rupees?
  33. 33.36 is 15% of ?
  34. 34.40% of a number is 98. What is the number?
  35. 35.Ishaan spent ₹31, which is 10% of the pocket money. How much pocket money did Ishaan have, in rupees?
  36. 36.21 is 30% of ?
  37. 37.49 is 25% of ?
  38. 38.10% of a number is 37. What is the number?
  39. 39.80% of a number is 96. What is the number?
  40. 40.12% of a number is 18. What is the number?

Answer key

  1. 395
  2. 180
  3. 340
  4. 340
  5. 236
  6. 370
  7. 170
  8. 240
  9. 400
  10. 170
  11. 230
  12. 240
  13. 40
  14. 145
  15. 100
  16. 134
  17. 8
  18. 335
  19. 200
  20. 315
  21. 88
  22. 60
  23. 325
  24. 135
  25. 295
  26. 184
  27. 385
  28. 70
  29. 256
  30. 350
  31. 260
  32. 140
  33. 240
  34. 245
  35. 310
  36. 70
  37. 196
  38. 370
  39. 120
  40. 150

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