Question

12 defective pens are accidently mixed with 132 good ones. It is not possible to just look at pen and tell whether or not it is defective. One pen is taken out at random from this lit. Determine the probability that the pen taken out is good one.

Answer 1

Answer:

$hello$

It is not possible to just look at a pen and tell whether or ... One pen is taken out at random from this lot. Determine the probability that the pen taken out is a good one.

Answer 2

$\huge\star\mathfrak\blue{{Answer:-}}$

Defective pens = 12

Good pens = 132

Total pens = 12 +132 = 144

Probability = 132 / 144

= 0 .91 or 11 / 13