Question

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

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

$P=\frac{30}{39}=\frac{10}{13}$

Hence, the probabilityof choosing a good mango is $\frac{10}{13}$.