3.2AB6

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mehravikas: Legendary Member; Posts: 1161; Joined: Mon May 12, 2008 2:52 amFollowed by: 1 member; Location: Sydney; Thanked: 23 times

by mehravikas » Mon Jun 02, 2008 2:27 am

S5-14

3.2AB6

If A andB each represent single digits in the decimal above, what digit does A represent?

(1) When the decimal is rounded to the nearest tenth, 3.2 is the result.
(2) When the decimal is rounded to the nearest hundredth, 3.24 is the result.

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Source: Beat The GMAT — Data Sufficiency | Mon Jun 02, 2008 2:27 am

amitansu: Master | Next Rank: 500 Posts; Posts: 294; Joined: Tue Feb 26, 2008 9:05 pmFollowed by: 1 member; Thanked: 13 times

by amitansu » Mon Jun 02, 2008 2:58 am

Is B ans here !

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niraj_a: Legendary Member; Posts: 708; Joined: Sun Jun 01, 2008 4:59 amFollowed by: 1 member; Location: USA; Thanked: 13 times

by niraj_a » Mon Jun 02, 2008 7:28 am

the answer looks like B to me too, unless its D.

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chidcguy: Master | Next Rank: 500 Posts; Posts: 438; Joined: Mon Feb 12, 2007 9:44 am; Thanked: 26 times

by chidcguy » Mon Jun 02, 2008 9:58 am

3.2AB6

(1) When the decimal is rounded to the nearest tenth, 3.2 is the result.

We can get 3.2 when we have 3.2[0-4]B6. Which means A =0,1,2,3,4

Insufficient

(2) When the decimal is rounded to the nearest hundredth, 3.24 is the result.

3.24 is the desired value and it can be possible when we round up

3.23[5-9] or 3.24[0-4] Which means A=3/4 Insufficient

Taking both of them together A=3/4

Insufficient E

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niraj_a: Legendary Member; Posts: 708; Joined: Sun Jun 01, 2008 4:59 amFollowed by: 1 member; Location: USA; Thanked: 13 times

by niraj_a » Mon Jun 02, 2008 10:40 am

hmm, that explanation makes sense. i guess its no surprise why im scoring low in D/S...lol

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chidcguy: Master | Next Rank: 500 Posts; Posts: 438; Joined: Mon Feb 12, 2007 9:44 am; Thanked: 26 times

by chidcguy » Mon Jun 02, 2008 11:01 am

Niraj,

I have been there. We need to get into the groove and think like the test makers. After a while it becomes easier. My DS still sucks. But not as much as it was when I started out

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niraj_a: Legendary Member; Posts: 708; Joined: Sun Jun 01, 2008 4:59 amFollowed by: 1 member; Location: USA; Thanked: 13 times

by niraj_a » Mon Jun 02, 2008 11:17 am

totally agree with you on that one! i sucked at math when i started this journey but have got slightly better now.

thanks for quick response and good luck to you! when do you take it?

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mehravikas: Legendary Member; Posts: 1161; Joined: Mon May 12, 2008 2:52 amFollowed by: 1 member; Location: Sydney; Thanked: 23 times

by mehravikas » Tue Jun 03, 2008 2:47 am

Hi Guys,

Official answer is - E

Thanks,

Vikas

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