Question

There are 5 red balls,6 white balls and 7 green balls in a box.If one ball is taken without looking,what is the probability that it is white?

Answer 1

Probability = No. of favourable outcomes / no. of outcomes.
Thus,


`\alpha = (6)/(13)\\ \alpha = 0.46 \\ \\ Probability = 0.46`

Answer 2

5 + 6 + 7 = 18

6/18
1/3

1/3 chance