boxes

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ketkoag: Legendary Member; Posts: 876; Joined: Thu Apr 10, 2008 8:14 am; Thanked: 13 times

by ketkoag » Thu Jun 11, 2009 3:47 am

A store boss can buy two kinds of goods, X: 32/box; Y: 40/box. If he plan to buy same quantity of X and Y, at least how many boxes of X should he buy?`

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Source: Beat The GMAT — Problem Solving | Thu Jun 11, 2009 3:47 am

rah_pandey: Master | Next Rank: 500 Posts; Posts: 122; Joined: Fri May 22, 2009 10:38 pm; Thanked: 8 times; GMAT Score:700

by rah_pandey » Thu Jun 11, 2009 3:52 am

Dont you think your question is cryptic. Can you elaborate 32/box, 40/Box

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Pranay: Senior | Next Rank: 100 Posts; Posts: 59; Joined: Tue May 05, 2009 1:58 am; Thanked: 1 times

Re: boxes

by Pranay » Thu Jun 11, 2009 3:55 am

ketkoag wrote:A store boss can buy two kinds of goods, X: 32/box; Y: 40/box. If he plan to buy same quantity of X and Y, at least how many boxes of X should he buy?`

IMO 5!

Please post the OA.

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ketkoag: Legendary Member; Posts: 876; Joined: Thu Apr 10, 2008 8:14 am; Thanked: 13 times

Re: boxes

by ketkoag » Thu Jun 11, 2009 4:41 am

Pranay wrote:
ketkoag wrote:A store boss can buy two kinds of goods, X: 32/box; Y: 40/box. If he plan to buy same quantity of X and Y, at least how many boxes of X should he buy?`
IMO 5!

Please post the OA.

Oa is 5.. could you please elaborate your answer. I don't get how to solve this one..

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tohellandback: Legendary Member; Posts: 752; Joined: Sun May 17, 2009 11:04 pm; Location: Tokyo; Thanked: 81 times; GMAT Score:680

by tohellandback » Thu Jun 11, 2009 6:10 am

this is an LCM question
LCM of 32 and 40=160
160/32=5 boxes
you see 5 boxes of A contain 160 As
4 boxes of B contain 160 Bs.
thats what the question. Number of As and Bs should be same

The powers of two are bloody impolite!!

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ketkoag: Legendary Member; Posts: 876; Joined: Thu Apr 10, 2008 8:14 am; Thanked: 13 times

by ketkoag » Tue Jun 16, 2009 9:17 am

nice explanation, thanks a lot..

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hazpazfaz: Junior | Next Rank: 30 Posts; Posts: 18; Joined: Mon May 18, 2009 3:21 am

by hazpazfaz » Wed Jun 17, 2009 1:22 am

tohellandback wrote:this is an LCM question
LCM of 32 and 40=160
160/32=5 boxes
you see 5 boxes of A contain 160 As
4 boxes of B contain 160 Bs.
thats what the question. Number of As and Bs should be same

on point

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