Question

A bag contains x white,y red and z blue.A ball is drawn at the random,then what is the probability of drawing a blue ball

Answer 1

white balls=x
red balls=y
blue balls=z
total balls=x+y+z
probability=no.of favourable outcomes/total outcomes
probability of drawing blue balls=z/(x+y+z)

Answer 2

Given,

White balls = x

Red balls = y

Blue balls = z

To find,

The probability of drawing a blue ball from the bag.

Solution,

The probability of drawing a blue ball from the bag will be z/(x+y+z).

We can easily solve this problem by following the given steps.

Now,

We know

The probability of an event = Number of favourable outcomes/total number of outcomes

The number of favourable outcomes for the blue ball will be z.

And the total number of outcomes will be the sum of all the balls in the bag (x+y+z).

Then,

Probability of drawing a blue ball = z/(x+y+z)

[More to know: In this case, the probability of drawing a white ball from the bag will be x/(x+y+z) and the probability of drawing a red ball from the bag will be y/(x+y+z) ]