Ans for Q 2 is 7/15.
Because the numbers in the range of 1 to 15 and also even are 2,4,6,8,10,12,15.
The multiple of 4 and in the range of 1 to 15 is 4,8,12 but they are already included as even numbers thats why we need not count them.
So the favorable outcome is 7
and since there is only 15 cards therefore the total outcome is 15
and the probability (even|multiple of 4) = favorable outcome/total outcome
probability = 7/15