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ratios

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: — Data Sufficiency |
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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
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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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