Question

there are 12 marbles in a box with numbers from 1 to 12 marked on each of them (1) what is the probability of drawing a marble with even number ? (answer in fraction).​

Answer 1

Total numbers = 1 to 12

There are 6 even numbers and 6 odd numbers in that box

So,

probability of drawing a marble with even number =

$= \frac{number \: of \: even}{total \: marbles}$

= 6/12 = 1/2

probability of drawing a marble with even number = 1/2

... Hope this will help....