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Two hundred gallons of fuel oil are purchased at $0.91 per gallon and

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jlgdr
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Two hundred gallons of fuel oil are purchased at $0.91 per gallon and [#permalink] New post   17 Sep 2013, 08:43
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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?

(A) 140
(B) 220
(C) 260
(D) 322
(E) 330
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C
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Bunuel
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Re: Two hundred gallons of fuel oil are purchased at $0.91 per gallon and [#permalink] New post   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.

Answer: C.
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Re: Two hundred gallons of fuel oil are purchased at $0.91 per gallon and [#permalink] New post   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.

Answer: C.


How could you approximate to 260 hrs?
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Re: Two hundred gallons of fuel oil are purchased at $0.91 per gallon and [#permalink] New post   21 Sep 2013, 12:01
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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.

Answer: C.


How could you approximate to 260 hrs?


\(\frac{200}{(\frac{0.7}{0.91})} = 200*\frac{10}{7}*\frac{91}{100} = 20*13=260\).
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Re: Two hundred gallons of fuel oil are purchased at $0.91 per gallon and [#permalink] New post   16 Nov 2017, 09:45
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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

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

= \(260\)

Answer will be (C)
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Re: Two hundred gallons of fuel oil are purchased at $0.91 per gallon and [#permalink] New post   17 Nov 2017, 14:31
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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


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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Re: Two hundred gallons of fuel oil are purchased at $0.91 per gallon and [#permalink] New post   13 Oct 2020, 01:06
"So, in 1 hour 0.7/0.91 gallons are consumed. "
Can't understand why we are dividing these two. Please help...
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Re: Two hundred gallons of fuel oil are purchased at $0.91 per gallon and [#permalink] New post   03 Apr 2023, 03:37
Hello from the GMAT Club BumpBot!

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Re: Two hundred gallons of fuel oil are purchased at $0.91 per gallon and [#permalink]
03 Apr 2023, 03:37
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