Two numbers are selected randomly from the set S = {1, 2, 3, 4, 5, 6} without replacement one by one. The probability that minimum of the two numbers is less than 4 is
the minimum of two numbers means take {highest value - lowest value } and that value should be less than 4
eg;(6-5),(6-4),(6-3),(5-4),(5-3)............ u will get 12 values
so now n(A) = 12
n(s)=15
p(A)=n(A)/n(S)
ans;4/5