Question

Nine rotten mangoes are mixed with $30$ good ones. One mango is chosen at random. What is the probability of choosing a rotten mango

Answer 1

It is given that $9$ rotten mangoes are mixed with $30$ good ones, therefore, the total number of outcomes are $30+9=39$.

Now, the number of favourable outcome that a rotten mango chosen is $9$.

Therefore, probability $P$ of choosing a rotten mango is:

$P=\frac{9}{39}$

Hence, the probabilityof choosing a rotten mango is $\frac{9}{39}$.