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The expressions in the table above give the distance of each
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15 May 2015, 12:00
15 May 2015, 12:00
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The expressions in the table above give the distance of each of two trains from Centerville at t hours after 12:00 noon. At what time will the trains be equidistant from Centerville?
(A) 1:30 p.m.
(B) 3:30 p.m.
(C) 5:10 p.m.
(D) 8:50 p.m.
(E) 11:30 p.m.
Re: GRE Math Challenge #119
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23 Jul 2015, 01:01
23 Jul 2015, 01:01
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the two trains will be equidistant from centerville at
-10t+115=-20t+150
-10t+20t=150-115
10t=35
t=3.5
the time at which the trains would be equidistant at 12+3.5=3.30pm
hence the answer is B
-10t+115=-20t+150
-10t+20t=150-115
10t=35
t=3.5
the time at which the trains would be equidistant at 12+3.5=3.30pm
hence the answer is B
Re: The expressions in the table above give the distance of each
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24 Aug 2024, 22:11
24 Aug 2024, 22:11
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