Question 1195689
.
<pre>

In this problem, events A and B are disjoint and gender is irrelevant;  therefore


    P(A or B) = P(A) + P(B) = {{{30/70}}} + {{{20/70}}} = {{{3/7}}} + {{{2/7}}} = {{{5/7}}}.    <U>ANSWER</U>
</pre>

Solved.