Question

A ball is drawn at random from a box containing 3 red balls, 4 white balls and 5 blue balls. What is the probablity that it is not blue?

Answer 1

$<marquee>❤✌7/12✌❤</marquee>$

Answer 2

Answer:

Total outcomes i.e n(s) = 3+4+5 = 12

No. of possible outcomes i.e n (a) = red + white = 3+4 = 7

So P(a) = n (a) / n (s)

= 7/12

Hope it helps.....!