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A car has to travel from New York to Chicago at an average speed of 40
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17 Jun 2025, 00:58
17 Jun 2025, 00:58
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Question Stats:
75% (01:36) correct
25% (01:55) wrong based on 4 sessions
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A car has to travel from New York to Chicago at an average speed of 40 miles per hour and return immediately along same route at an average speed of 60 miles per hour. What is the average speed, in miles per hour, for the round trip?
(A) 45
(B) 48
(C) 50
(D) 51
(D) 55
(A) 45
(B) 48
(C) 50
(D) 51
(D) 55
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Re: A car has to travel from New York to Chicago at an average speed of 40
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17 Jun 2025, 01:10
17 Jun 2025, 01:10
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avg speed = total distance / total time
=let distance from one side is x so total roundtrip distance is 2x,
time=distance/speed
,
so avg speed=2x/(x/40 + x/60) which will give 48 as answer
=let distance from one side is x so total roundtrip distance is 2x,
time=distance/speed
,
so avg speed=2x/(x/40 + x/60) which will give 48 as answer
gmatclubot
Re: A car has to travel from New York to Chicago at an average speed of 40 [#permalink]
17 Jun 2025, 01:10
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