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Two hundred gallons of fuel oil are purchased... [#permalink]

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17 Sep 2013, 08:43

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Question Stats:

90% (01:24) correct 10% (01:16) wrong based on 121 sessions

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Two hundred gallons of fuel oil are purchased at $0.91 per gallon and are consumed at a rate of $0.70 worth of fuel per hour. At this rate, how many hours are required to consume the 200 gallons of fuel oil?

Re: Two hundred gallons of fuel oil are purchased... [#permalink]

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17 Sep 2013, 09:01

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jlgdr wrote:

Two hundred gallons of fuel oil are purchased at $0.91 per gallon and are consumed at a rate of $0.70 worth of fuel per hour. At this rate, how many hours are required to consume the 200 gallons of fuel oil?

(A) 140 (B) 220 (C) 260 (D) 322 (E) 330

1 gallon costs $0.91; Consumed at a rate of $0.70 worth of fuel per hour.

So, in 1 hour 0.7/0.91 gallons are consumed. Therefore, 200 gallons will be consumed in 200/(0.7/0.91) = 260 hours.

Re: Two hundred gallons of fuel oil are purchased... [#permalink]

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21 Sep 2013, 11:55

Bunuel wrote:

jlgdr wrote:

Two hundred gallons of fuel oil are purchased at $0.91 per gallon and are consumed at a rate of $0.70 worth of fuel per hour. At this rate, how many hours are required to consume the 200 gallons of fuel oil?

(A) 140 (B) 220 (C) 260 (D) 322 (E) 330

1 gallon costs $0.91; Consumed at a rate of $0.70 worth of fuel per hour.

So, in 1 hour 0.7/0.91 gallons are consumed. Therefore, 200 gallons will be consumed in 200/(0.7/0.91) = 260 hours.

Re: Two hundred gallons of fuel oil are purchased... [#permalink]

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21 Sep 2013, 12:01

jlgdr wrote:

Bunuel wrote:

jlgdr wrote:

Two hundred gallons of fuel oil are purchased at $0.91 per gallon and are consumed at a rate of $0.70 worth of fuel per hour. At this rate, how many hours are required to consume the 200 gallons of fuel oil?

(A) 140 (B) 220 (C) 260 (D) 322 (E) 330

1 gallon costs $0.91; Consumed at a rate of $0.70 worth of fuel per hour.

So, in 1 hour 0.7/0.91 gallons are consumed. Therefore, 200 gallons will be consumed in 200/(0.7/0.91) = 260 hours.

Re: Two hundred gallons of fuel oil are purchased... [#permalink]

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16 Nov 2017, 09:45

jlgdr wrote:

Two hundred gallons of fuel oil are purchased at $0.91 per gallon and are consumed at a rate of $0.70 worth of fuel per hour. At this rate, how many hours are required to consume the 200 gallons of fuel oil?

(A) 140 (B) 220 (C) 260 (D) 322 (E) 330

\(\frac{200*0.91}{0.70}\)

= \(260\)

Answer will be (C) _________________

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Abhishek....

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Re: Two hundred gallons of fuel oil are purchased... [#permalink]

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17 Nov 2017, 14:31

1

jlgdr wrote:

Two hundred gallons of fuel oil are purchased at $0.91 per gallon and are consumed at a rate of $0.70 worth of fuel per hour. At this rate, how many hours are required to consume the 200 gallons of fuel oil?

(A) 140 (B) 220 (C) 260 (D) 322 (E) 330

The cost for the two hundred gallons is 0.91 x 200 = 182 dollars.

Thus, the number of hours to consume 200 gallons of fuel is 182/0.7 = 260.

Answer: C
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