Let:
A = Probability of choose a can of tomato soup
B = Probability of choose a can of cheese soup
P(A) = (Number of cans of tomato soup)/(Total of cans of soup) = 2/10 = 1/5
P(B) = (Number of cans of cheese soup)/(Total of cans of soup) = 2/10 = 1/5
Since A and B are mutually exclusive
P(A ∩ B) = P(A)*P(B) = (1/5)*(1/5) = 1/25