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# In the table above is shown the percent reduction in the

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Manager
Joined: 21 May 2011
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In the table above is shown the percent reduction in the [#permalink]  23 Jul 2011, 20:12
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Difficulty:

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Question Stats:

29% (02:41) correct 71% (01:57) wrong based on 249 sessions
Date of Purchase
Percent Reduction

July 1 through July 7
5%

July 8 through July 14
30%

July 15 through July 21
55%

July 22 through July 28
70%

In the table above is shown the percent reduction in the price of every item in a store off the original price of that item on June 30 of that year. The table is for the 28 days immediately after June 30 of that year. If on July n of that year, Bill bought a suit that originally cost $450, what is the value of n? (1) Bill paid$112.50 less than he would have if he had bought it the day before.

(2) Bill paid $202.50 for the suit. [Reveal] Spoiler: OA Senior Manager Joined: 24 Mar 2011 Posts: 457 Location: Texas Followers: 5 Kudos [?]: 100 [0], given: 20 Re: DS - 700 level - Suit [#permalink] 23 Jul 2011, 20:27 interesting question.. i think i will choose A for this... only statement 1 is sufficient... how i solved? B - of course is sufficient..$202.50 .. falls under 3rd category BUT i dont know which day in 3rd category.. it can be any from july 15th through 21st...

now for A to be correct there is hint... to see if 55% of 450 - 30% of 450 = 112.50 and i think it is.
so it is the 15th day of july
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Re: DS - 700 level - Suit [#permalink]  23 Jul 2011, 20:40
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bschool83 wrote:
Date of Purchase
Percent Reduction

July 1 through July 7
5%

July 8 through July 14
30%

July 15 through July 21
55%

July 22 through July 28
70%

In the table above is shown the percent reduction in the price of every item in a store off the original price of that item on June 30 of that year. The table is for the 28 days immediately after June 30 of that year. If on July n of that year, Bill bought a suit that originally cost $450, what is the value of n? (1) Bill paid$112.50 less than he would have if he had bought it the day before.

(2) Bill paid $202.50 for the suit. Can't do much about it except solving: 1) 450*0.95=427.5 450*0.7=315 450*0.45=202.5 450*0.3=135.0 427.5-315=112.5 => n=8 315-202.5=112.5 => n=15 Not Sufficient. 2) 15<=n<=21 Not Sufficient. Together: n=15 Ans: "C" _________________ Manhattan GMAT Instructor Joined: 22 Mar 2011 Posts: 717 Followers: 196 Kudos [?]: 509 [1] , given: 22 Re: DS - 700 level - Suit [#permalink] 23 Jul 2011, 20:49 1 This post received KUDOS Expert's post Fluke is right. This is a typical DS trap. If we see that a difference of 112.50 show up at the junction of two date ranges, we figure we have the answer and start congratulating ourselves. However, it's really important to check and see if there is more than one junction where that particular difference shows up. Assume that there will be, and you can be pleasantly surprised if you're wrong! _________________ Dmitry Farber | Manhattan GMAT Instructor | New York Manhattan GMAT Discount | Manhattan GMAT Course Reviews | View Instructor Profile | Manhattan GMAT Reviews Manager Joined: 21 May 2011 Posts: 238 Followers: 0 Kudos [?]: 137 [5] , given: 8 Re: DS - 700 level - Suit [#permalink] 23 Jul 2011, 20:54 5 This post received KUDOS fluke, You really don't have to solve this and waste the precious time. Think about it strategically. From 1) if Bill paid$112.5 less than the price a day before, he basically saved 25% on the suit. So it could either be July 8th or July 15th. Hence, eliminate A and D.

From 2) if Bill paid \$202.5 for the suit, you can figure out the week that particular sale price was on, but not the exact date. Hence, eliminate B.

If both are true, it is easy to just pick the date which falls within the week from 2). Hence, C is correct.

No math is required except 112.5/450 which is easy 25%.

Hope this helps you.
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Re: In the table above is shown the percent reduction in the [#permalink]  17 Oct 2013, 06:34
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Re: In the table above is shown the percent reduction in the [#permalink]  17 Apr 2015, 20:09
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: In the table above is shown the percent reduction in the   [#permalink] 17 Apr 2015, 20:09
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