Question

In a bag, there are 36 bulbs out of which 12 are defective ones. A bulb is taken out of the bag at random. find the probability of selected bulb to be good one

Answer 1

The probability that the selected bulb to be good is 2/3

Answer 2

hey dear,

ur answer goes like this

----------------->>>>>>>>>>>>>>--------------

given,

total number of bulbs = 36

and, number of defective bulb = 12.

Thus,No. of good bulbs = 36 - 12

= 24


now,

we know,

Probability = No. of favourable observation/Total no. of observations.

P(good bulbs) = 24/36 = 2/3 Ans.


Thanks