Answer:
41/81.
Explanation:
There are a total of 99 balls.
On the first pick the probability he picks a red ball is 44/99 = 4/9.
On the second pick the probability is also 4/9 as the first ball is replaced,
So probability he picks 22 reds = (4/9)^2 = 16/81.
If he picks 2 blue balls probability = (5/9) * 2 = 25/81.
So the required probability ( 2 reds Or 2 blues) = 16/81 + 25/81
= 41/81.