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How fast was the train traveling 5/2 hours after the beginning of the

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How fast was the train traveling 5/2 hours after the beginning of the [#permalink]

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New post 27 Oct 2017, 00:23
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A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

81% (00:25) correct 19% (00:33) wrong based on 145 sessions

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How fast was the train traveling 5/2 hours after the beginning of the timed period?

(A) 50 mph
(B) 55 mph
(C) 60 mph
(D) 65 mph
(E) 70 mph

Attachment:
2017-10-27_1121.png
2017-10-27_1121.png [ 23.29 KiB | Viewed 1921 times ]

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How fast was the train traveling 5/2 hours after the beginning of the [#permalink]

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New post 27 Oct 2017, 00:41
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\(\frac{5}{2}\) hours is 2.5 hours or 150 minutes.

After 150 minutes that the train started, the speed of the train was 65 mph(Option D)
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Re: How fast was the train traveling 5/2 hours after the beginning of the [#permalink]

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New post 30 Oct 2017, 14:10
Bunuel wrote:
Image
How fast was the train traveling 5/2 hours after the beginning of the timed period?

(A) 50 mph
(B) 55 mph
(C) 60 mph
(D) 65 mph
(E) 70 mph

Attachment:
2017-10-27_1121.png


5/2 hours is 5/2 x 60 = 150 minutes. At that time, the train’s speed was 65 miles per hour.

Answer: D
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Re: How fast was the train traveling 5/2 hours after the beginning of the [#permalink]

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New post 13 Mar 2018, 09:01
Bunuel wrote:
Image
How fast was the train traveling 5/2 hours after the beginning of the timed period?

(A) 50 mph
(B) 55 mph
(C) 60 mph
(D) 65 mph
(E) 70 mph

Attachment:
2017-10-27_1121.png


Actually, the question is a matter of converting time units from hours to minutes.
5/2 hours = (5/2)X60 = 150 minutes. By given data at the beginning of the 150th minute, train's speed was 65mph. So the answer is (D).
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Re: How fast was the train traveling 5/2 hours after the beginning of the [#permalink]

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New post 28 Mar 2018, 01:03
Bunuel wrote:
Image
How fast was the train traveling 5/2 hours after the beginning of the timed period?

(A) 50 mph
(B) 55 mph
(C) 60 mph
(D) 65 mph
(E) 70 mph

Attachment:
2017-10-27_1121.png


Time = 5/2 * 60 = 150 minutes or 2*1/2 hrs

Speed = 65 miles

(D)
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Re: How fast was the train traveling 5/2 hours after the beginning of the   [#permalink] 28 Mar 2018, 01:03
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