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When 200 gallons of oil were removed from a tank [#permalink]

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25 Mar 2009, 23:05

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When 200 gallons of oil were removed from a tank, the volume of oil left in the tank was \(\frac{3}{7}\) of the tank's capacity. What was the tank’s capacity?

(1) Before the 200 gallons were removed, the volume of oil in the tank was \(\frac{1}{2}\) of the tank's capacity. (2) After the 200 gallons were removed, the volume of the oil left in the tank was 1,600 gallons less than the tank's capacity.

Let current quantity in tank = X and Tank's total capacity = T Now, X - 200 = 3T/7

So, if we know X we could solve for T.

1. Suff. 2. Tricky but Suff. Since T - 1600 = 3T/7
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Re: When 200 gallons of oil were removed from a tank [#permalink]

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22 Jul 2015, 02:06

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