In bag C there are 5 books and 2 copybooks, in bag D there are 3 books and 3 copybooks. A bag is randomly picked, what is the probability of picking up a book out of bag C?  Pick.
A) 2/5. B) 5/14. C) 3/10. D) 3/4 E) 2/3.
Probability of picking up one bagout of two= 1/2   probability of picking 1 book from bag C= 5/7   Hence the desired probability= 1/2*5/7= 5/14   5/14. is the answer
<result>B</result>
In bag C there are 5 books and 2 copybooks, in bag D there are 3 books and 3 copybooks. A bag is randomly picked, what is the probability of picking up a book out of bag C?