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blitzkriegxX
After a fisherman sold 1/4 of the fish he had caught and gave away 2/3 of the remaining fish, he had 4 fish left. What was the total number of fish he had caught?

(A) 8
(B) 16
(C) 20
(D) 32
(E) 40

We can let n = the number of fish the fisherman caught and create the equation:

n - (1/4)n - (2/3)(3/4)n = 4

n - (1/4)n - (1/2)n = 4

Multiplying the equation by 4, we have:

4n - n - 2n = 16

n = 16

Answer: B
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Fastest way:

Let total be 100%
100-(100*1/4)
=100-25= 75%

75- (75*2/3)= 75-50= 25

25% of fish left.
25%= 4
100%= 4/25 *100= 16

ANSWER :B

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