Question

A box contains 400 electronic toy cars .Among them, 12 are defective. One toy is taken out at random.What is the probability that it is a defective toy?What is the probability that it is a non-defective toy?

Answer 1

$\huge\red\star\mathfrak{ \boxed{ \underline{ \mathfrak \purple{Answer!}}}}$

Total number of toy cars= 400

Defective toy cars=12

$\bold{Probability = \frac{number \: of \: favourable \: outcomes}{total \: number \: of \: outcomes} }$

$\textsf{Now, to find the probability of defective toy}$

$\bold{= \frac{12}{200} = \frac{6}{100} = 0.6}$

$\textsf{Now, to find the probability of non-defective toy}$

(Non- defective toys= 400-12= 388)

$\bold{ = \frac{388}{400 } = \frac{97}{100} = 0.97}$