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rahul.s: Master | Next Rank: 500 Posts; Posts: 324; Joined: Thu Dec 24, 2009 6:29 amFollowed by: 1 member; Thanked: 17 times

by rahul.s » Tue Jan 26, 2010 3:32 am

What is the ratio of x to y ?

(1) The ratio of 0.2x to 3y is 1 to 6.

(2) y is 40 less than twice x.

OA: A

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Source: Beat The GMAT — Data Sufficiency | Tue Jan 26, 2010 3:32 am

ajith: Legendary Member; Posts: 1275; Joined: Thu Sep 21, 2006 11:13 pmFollowed by: 2 members; Location: Arabian Sea; Thanked: 125 times

by ajith » Tue Jan 26, 2010 4:03 am

rahul.s wrote:What is the ratio of x to y ?

(1) The ratio of 0.2x to 3y is 1 to 6.

(2) y is 40 less than twice x.

OA: A

1. 0.2x/3y = 1/6

x/y = 15/6 (sufficient)

2) y = 2x-40 (insufficient)

1 alone is sufficient

Always borrow money from a pessimist, he doesn't expect to be paid back.

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bhumika.k.shah: Legendary Member; Posts: 941; Joined: Sun Dec 27, 2009 12:28 amFollowed by: 1 member; Thanked: 20 times

by bhumika.k.shah » Tue Jan 26, 2010 6:48 am

Dear Rahul,

As per statement I ,by cross multiplication we get ,
1.2x=3y
Multiplying the above equation by 10 we get,
12x=30 y
which is sufficient!

Statement II - insufficient coz we dont know the value of x

Hence A

Do let me know rahul if u need any further help!

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