Question

A box contains 25 bulbs of which 6 are defective.two bulbs are chosen randomly from the box .what is the probability that atleast one of them would be defective

Answer 1

Answer:

Two bulbs are chosen at random. What is the probability that one of them is defective? The probability that the first bulb is ...

Answer 2

Answer:

ANSWER

Given:-

Total no. of electric bulbs =20

Number of defective bulbs=4

To find:- Probability (P) of getting a defective bulb, if one bulb is chosen randomly = ?

Solution:-

P=

Total number of bulbs

Number of defective bulbs

=

20

4

=

5

1