In a fish tank, 2/5 of the fish are red, 1/4 are yellow, and the rest are green. There are 8 more red fish than green fish. How many fish are in the tank total?

Answer 1

2/5 = R

1/4 = Y

R=G+8

G= 1-2/5 - 1/4 = 1-(8+5)/20= 7/20

7/20 of the fish are green

2/5 + 1/4 + 7/20 = 1

2/5T = 8+ 7/20T

40/100T -35/100T = 8

5T/100 = T/20 = 8

Total fish = 160

2/5 are red = 2/5(160) = 2(32) = 64 red fish

7/20 are green = 7/20(160) = 7(8) = 56 green fish

1/4 are yellow = 1/4(160) = 40 yellow fish

64+56+40 = 160 total fish