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Jack has a total of b hardback and paperback books in his library. If the number of hardback books is 1/3 the number of paperback books, and 3/4 of the paperback books are biographies, how many biographies, in terms of b, are in Jack's library?
A) (1/9)b
B) (3/20)b
C) (3/16)b
D) (1/3)b
E) (9/16)b
The OA is E.
I'm really confused by this PS question. Experts, any suggestion about how can I solve it? I don't understand it. Thanks in advance.
A) (1/9)b
B) (3/20)b
C) (3/16)b
D) (1/3)b
E) (9/16)b
The OA is E.
I'm really confused by this PS question. Experts, any suggestion about how can I solve it? I don't understand it. Thanks in advance.
