Question

The probability of getting a bad egg in a lot of $400$ is $0.035$. The number of bad eggs in the lot is
(a) $7$
(b) $14$
(c) $21$
(d) $28$

Answer 1

Here, total number of eggs $=400$
Probability of getting a bad egg $=0.035$
$\Rightarrow \frac{\text{Number~of~bad~eggs}}{\text{Total~number~of~eggs}}=0.035$
$\Rightarrow \frac{\text{Number~of~bad~eggs}}{400}=0.035$
$\therefore$ Number of bad eggs $=0.035\times 400=14$