ashforgmat wrote:For each order, a mail order bookseller charges a fixed processing fee and an additional shipping fee for each book in the order. Rajeev placed five different orders with this bookseller - an order for 1 book in January, an order for 2 books in February, an order for 3 books in March, an order for 4 books in April, and an order for 5 books in May. What was the total of Rajeev's processing and shipping fee for these five orders?
1) Rajeev's processing and shipping fees were $1 more for his order in March than for his order in January
2) The total of Rajeev's shipping fees for the five orders was $7.50
Let P = processing fee, S = shipping fee per book.
Statement 1:
Total in March = P + 3S
Total in January = P + S
Since the March total is $1 more than the January total, we get:
P + 3S = P + S + 1
2S = 1
S = .5
No information about P.
Insufficient.
Statement 2:
Total shipping fees for 15 books = 15S
Thus, 15S = 7.50.
S = .5
No information about P.
Insufficient.
Statements 1 and 2:
No information about P.
Insufficient.
The correct answer is
E.
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