A certain bookstore sells paperback and hardcover books. The ratio of paperbacks to hardcovers in stock is 3:2. How many paperbacks and hardcovers are in stock?
1) 1/3 of the paperbacks in stock are non-fiction.
2) There are 20 more paperbacks than hardcovers in stock.
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sparkles3144
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paperback : hardcover = 3:2
How many paperbacks and hardcovers are in stock?
1) 1/3 of the paperbacks in stock are non-fiction.
This information is not relavant. This will lead us to nowhere. A is insufficient.
2) There are 20 more paperbacks than hardcovers in stock.
paperbacks = 20+ hardcovers
P = 20 + H
P/H = 3:2
P = 20 + H
(20 + H)/H = 3/2
H = 40
P = 60
P/H = 60/40 = 3/2
B is sufficient
How many paperbacks and hardcovers are in stock?
1) 1/3 of the paperbacks in stock are non-fiction.
This information is not relavant. This will lead us to nowhere. A is insufficient.
2) There are 20 more paperbacks than hardcovers in stock.
paperbacks = 20+ hardcovers
P = 20 + H
P/H = 3:2
P = 20 + H
(20 + H)/H = 3/2
H = 40
P = 60
P/H = 60/40 = 3/2
B is sufficient
