A tank contains $50$ fishes of equal size of which $18$ are green, $x$ are yellow and the rest

Question

A tank contains $50$ fishes of equal size of which $18$ are green, $x$ are yellow and the rest are red. If a fish is selected randomly from the tank, find the probability that the fish selected is green, not green. If the probability of selecting a yellow fish is $\frac{3}{10}$, find the value of $x$.

Accepted Answer

(a)(i) $\frac9{25}$ (ii) $\frac{16}{25}$ (b) $x=15$

Probability: Choosing a Fish from a Tank

Probability: Choosing a Fish from a Tank

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