The integers r and k are randomly selected, where 3 < r < 6 and 1 < k < 8. What is the
probability that the division r/k is an integer value? Express your answer as a common fraction.
+526 Let the set of values of r = {4,5} and k = {2,3,4,5,6,7} and let E be the event that rk is an integer.
⇒Total no. of outcomes = 12
No. of favourable outcomes = 2
∴ P(E)=212=16
