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If tank X contains only gasoline, how many kiloliters of

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If tank X contains only gasoline, how many kiloliters of [#permalink] New post 08 Apr 2006, 14:07
If tank X contains only gasoline, how many kiloliters of gasoline are in tank X.

(1) If 1/2 of the gasoline in tank X were pumped out, the tank would be fillef to 1/3 of its capacity.

(2) If .75 kiloliter of gasoline were pumped into tank X, it would be filled to capacity.
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 [#permalink] New post 08 Apr 2006, 14:45
I will take C.
x=amount of gasoline in kiloliters and y=capacity of tank in kiloliters

statement 1. 1/2x=1/3y not sufficient

statement 2. 3/4+1/2x=y not sufficient

Both sufficient.

Two equations with two variables solvable
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 [#permalink] New post 10 Apr 2006, 01:14
I agree with C as well.

Jodeci how did you set up the equation for statement 2? aren't you combining statement 1 also?...please advise because I always messing up this type of problem. :roll:
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 [#permalink] New post 11 Apr 2006, 06:37
jodeci wrote:
I will take C.
x=amount of gasoline in kiloliters and y=capacity of tank in kiloliters

statement 1. 1/2x=1/3y not sufficient

statement 2. 3/4+1/2x=y not sufficient

Both sufficient.

Two equations with two variables solvable


don't you think that statement 2 should be: 3/4 + x = y


End result is the same though: 2 equations and 2 unknowns => solvable!
  [#permalink] 11 Apr 2006, 06:37
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