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guddo
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Andrew and Clair each purchased a book, and the list prices of their 24 Jan 2024, 03:59
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15% (low)

Question Stats:

85% (01:51) correct 15% (01:41) wrong based on 230 sessions

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Andrew and Clair each purchased a book, and the list prices of their books were the same. Andrew purchased his book at a store where the regular price of books is 20 percent less than their list price, and Clair purchased her book at a store where the regular price of books is 10 percent less than their list price. If both Andrew and Clair received a discount off the regular price of the book each of them purchased, were the discounted prices of their books the same?

(1) Andrew received a discount of 10 percent off the regular price.

(2) Clair received a discount of 20 percent off the regular price.

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2024-01-24_14-58-51.png
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C
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stne
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Andrew and Clair each purchased a book, and the list prices of their 26 Jan 2024, 15:02
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guddo
Andrew and Clair each purchased a book, and the list prices of their books were the same. Andrew purchased his book at a store where the regular price of books is 20 percent less than their list price, and Clair purchased her book at a store where the regular price of books is 10 percent less than their list price. If both Andrew and Clair received a discount off the regular price of the book each of them purchased, were the discounted prices of their books the same?

(1) Andrew received a discount of 10 percent off the regular price.

(2) Clair received a discount of 20 percent off the regular price.

Show Spoiler
Attachment:
2024-01-24_14-58-51.png
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Let the list price be L.

Regular price becomes \(.8\)L and \(.9\)L for Andrew and Clair respectively.

(1) Andrew received a discount of \(10\) percent off the regular price.

So Andrew's buying price becomes \(= .9*.8\)L

However we know nothing of Clair.

INSUFF.

(2) Clair received a discount of \(20\) percent off the regular price.

So Clair's buying price becomes \(= .8*.9\)L

However we know nothing of Andrew.

INSUFF.

1+2

.\(9*.8\)L \(=\) \(.8*.9\)L

We can see Andrew's and Clair's buying price is same.

SUFF.

Note: Question is not asking whether they received the same amt of discount. Rather after their respective discounts did they pay the same price or not?

Ans C

Hope it's clear.
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Andrew and Clair each purchased a book, and the list prices of their 25 Mar 2025, 10:18
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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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