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Ex.15.1 Q11 Probability Solution - NCERT Maths Class 10

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Question

Gopi buys a fish from a shop for his aquarium. The shopkeeper takes out one fish at random from a tank containing $$5$$ male fish and $$8$$ female fish . What is the probability that the fish taken out is a male fish?

Video Solution
Probability
Ex 15.1 | Question 11

Text Solution

What is known?

A tank containing $$5$$ male fish and $$8$$ female fish

What is unknown?

The probability that the fish taken out is a male fish?

Rasoning:

This question can be solved easily by using the formula

Probability of an event

$=\frac{\begin{bmatrix} \text { Number of}\\ \text{ possible outcomes }\end{bmatrix} }{ \begin{bmatrix}\text { Total no of} \\ \text{favorable outcomes} \end{bmatrix} }$

Steps:

No of male fish $$=5$$
No of female fish $$=8$$
Total no of fishes

$$5+8=13$$

Probability that the fish taken out is a male fish \begin{align}=\frac{\text{No of male fish}}{\text{Total no of fishes}}\end{align}

Probability that the fish taken out is a male fish \begin{align}=\frac{5}{13}\end{align}

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