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Mike and Fritz ran a 30-mile Marathon. Mike ran 10 miles at
[#permalink]
30 Apr 2019, 01:09
30 Apr 2019, 01:09
Expert Reply
00:00
Question Stats:
71% (02:21) correct
28% (01:37) wrong based on 21 sessions
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Mike and Fritz ran a 30-mile Marathon. Mike ran 10 miles at 10 miles per hour and then ran at 5 miles per hour for the remaining 20 miles. Fritz ran the first one-third (by time) of the run at 10 miles per hour and the remaining two-thirds of the run at 5 miles per hour.
How much time in hours did Fritz take to complete the Marathon?
(A) 3
(B) 3.5
(C) 4
(D) 4.5
(E) 5
How much time in hours did Fritz take to complete the Marathon?
(A) 3
(B) 3.5
(C) 4
(D) 4.5
(E) 5
Re: Mike and Fritz ran a 30-mile Marathon. Mike ran 10 miles at
[#permalink]
16 Apr 2020, 02:38
16 Apr 2020, 02:38
Expert Reply
distance =velocity*time
1/3*t*10+2/3*t*5=30
10t/3+10t/3=30
20t=3*30
t=4.5
ans :D
1/3*t*10+2/3*t*5=30
10t/3+10t/3=30
20t=3*30
t=4.5
ans :D
gmatclubot
Re: Mike and Fritz ran a 30-mile Marathon. Mike ran 10 miles at [#permalink]
16 Apr 2020, 02:38
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