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For each order, a mail order bookseller charges a fixed processing fee

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Bunuel
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For each order, a mail order bookseller charges a fixed processing fee [#permalink] New post   01 Jul 2020, 02:55
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68% (02:17) correct 32% (02:13) wrong based on 593 sessions
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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


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E
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RaghavKhanna
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Re: For each order, a mail order bookseller charges a fixed processing fee [#permalink] New post   01 Jul 2020, 03:04
2
Kudos
Fees for an order of n books = P + nS ; P = processing fees, S = shipping fees per book

Jan : P + S
Feb : P + 2S
Mar : P + 3S
Apr : P + 4S
May : P + 5S

St. 1:
P + 3S - P - S = 1
=> 2S = 1
=> S = 1/2

Cannot determine P from it.
=> St. 1 is insufficient.

St. 2:
S + 2S + 3S + 4S + 5S = 7.5
=> 15S = 7.5
=> S = 1/2
Cannot determine P from it.
=> St. 2 is insufficient.

St. 1 and St. 2 :
We get S = 1/2
Cannot determine P from it.
=> St. 1 and St. 2 together are insufficient.

Answer: E
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Re: For each order, a mail order bookseller charges a fixed processing fee [#permalink] New post   01 Jul 2020, 03:05
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?

Solution:
(1) Rajeev's processing and shipping fees were $1 more for his order in March than for his order in January
Cost for 1 book = X(Processing+Shipping fees)
Cost for 3 books = X+1 (Processing+Shipping fees)
Cost of shipping 2 additional books = 1
But what's processing cost? (Insufficient)

(2) The total of Rajeev's shipping fees for the five orders was $7.50
No information regarding processing cost! (Insufficient)

Statement 1&2: No parameter given to determine the processing cost. (Insufficient)

IMO E

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Re: For each order, a mail order bookseller charges a fixed processing fee [#permalink] New post   01 Jul 2020, 03:46
Kindly see the attachment. Now this question might take you some time as it takes time to form the equation based on the complete context of the question.

TIME: 02:15
IMO E
Attachments

1.jpeg
1.jpeg [ 56.45 KiB | Viewed 8789 times ]

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rajatchopra1994
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Re: For each order, a mail order bookseller charges a fixed processing fee [#permalink] New post   01 Jul 2020, 21:45
Explanation:

Statement 1: March - Jan = P + 3S - P - S => 1
2S = 1,
S = 1/2 , Can't find value for P
Not Sufficient.

Statement 2: Jan + Feb + Mar + Apr + May = 7.5$
S + 2S + 3S + 4S + 5S = 7.5
15S = 7.5
S = 1/2 , Can't find value for P
Not Sufficient.

From 1 & 2,
Know, S = 1/2 ; Can't find P
Not Sufficient.

IMO-E
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Re: For each order, a mail order bookseller charges a fixed processing fee [#permalink] New post   12 Jun 2023, 03:49
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: For each order, a mail order bookseller charges a fixed processing fee [#permalink]
12 Jun 2023, 03:49
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