One bag contains three white marbles and five black marbles, and a second bag contains four white marbles and six black marbles. A person draws one marble from each bag. Find the probability that both marbles are of the same color.A.)21/40B.)1/2C.)3/14

There are two possible ways of getting 2 of the same color.
The chance of getting two white ones is 3/8 times 4/10 which is 0.15
The chance of getting two black ones is 5/8 times 6/10 which is 0.375
0.15+0.375=0.525 which is 21/40

So the answer is A.) 21/40