SOLUTION: 1. A millionaire bought a job lot of hats 1/4 of which were brown. The millionaire sold 2/3 of the hats including 4/5 of the brown hats. What fraction of the unsold hats were brown

Question 384746: 1. A millionaire bought a job lot of hats 1/4 of which were brown. The millionaire sold 2/3 of the hats including 4/5 of the brown hats. What fraction of the unsold hats were brown.
(A)1/60 (B)1/15 (C)3/20 (D)3/5 (E)3/4

Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!



Hi,         

Let x represent the number of hats and 1/4x the number of brown hats.

Question states selling 4/5 of the brown hats Or having 1/5 of the brown left.

 (1/3)x total hats left of which 1/5*1/4x brown are left

 (1/20)x / (1/3)x = 3/20, fraction of the unsold hats that were brown 

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