The are 4 different possibilities to draw a ten, namely a ten of the four different suits. The probability of the event is the ratio of the 4 possibilities and the total number of possible choices, whcih is 52:
P(E) = 4/52 = 1/13 or about 7.7%
3 1/3 x 5 2/4 = 18 1/3 so 5 2/4 is your answer
I have no idea what that thing is talking about I agree with you