Stuart drives 180 km in 2 hours and 15 minutes work out the average speed

0.45 or 10/22

Step-by-step explanation:

Given

Total balls in urn 1=n(S_1 )=10+6=16

Total balls in urn 2=n(S_2 )=8+3=11

Let

P(W_1 )  be the probability that a white ball is chosen from urn 1

and

P(W_2 )  be the probability that a white ball is chosen from urn 2

So,

P(W_1 )=10/16

P(W_2 )=8/11

The probability that both are white:

P(W_1,W_2 )=P(W_1 )* P(W_2)

=10/16*8/11

=80/176  = 10/22

=0.45

The probability that both balls are white is 0.45 ..