Question

vase 1 contains 2 white and 4 black balls and vase 2 contains 4 white and 4 black balls if a ball is drawn out at random from one of the two vases what is the probability that it is a white ball

Answer 1

Answer:

2+4=6and4+4=8

and total no. of balls=14

therefore,

probability of getting a white ball is

6÷14=~0.43

Answer 2

Answer:

5/12.

Explanation:

The total number of balls in the vase 1 is given as 4+2=6 so the probability of getting white ball from vase 1 will be 2/6 = 1/3. For the second vase the total number of balls is 4+4=8 balls and the probability of getting a white ball is 4/8 = 1/2.

So, the probability of getting a white ball from both of the bags at a random will be 1/2*1/2 + 1/3*1/2 which on solving we will get that 5/12. Since there are 2 bags hence we take 1/2 for each bag.