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A particular rocket car can travel for sustained periods at a maximum

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Senior RC Moderator
Joined: 02 Nov 2016
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A particular rocket car can travel for sustained periods at a maximum  [#permalink]

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31 Mar 2019, 09:17
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Difficulty:

15% (low)

Question Stats:

89% (01:17) correct 11% (01:49) wrong based on 36 sessions

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A particular rocket car can travel for sustained periods at a maximum speed of 240 miles per hour. How many minutes would it take this rocket car to travel 86 miles?

A. 2.8
B. 18.5
C. 21.5
D. 22
E. 24

Source: McGraw-Hill's GMAT

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Re: A particular rocket car can travel for sustained periods at a maximum  [#permalink]

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31 Mar 2019, 09:47
1
Distance = Speed*time
Distance = 86
Speed = 240
Time = $$\frac{86}{240}$$ hrs = $$\frac{86}{240}*60$$ minutes = 21.5 minutes.

SajjadAhmad, Can you correct the options B and C? It looks like square root the numbers.
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Re: A particular rocket car can travel for sustained periods at a maximum  [#permalink]

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31 Mar 2019, 10:01
A particular rocket car can travel for sustained periods at a maximum speed of 240 miles per hour. How many minutes would it take this rocket car to travel 86 miles?

A. 2.8
B. 18.5
C. 21.5
D. 22
E. 24

Source: McGraw-Hill's GMAT

d=s*t
speed= 240/60 = 4 miles per min
so time
86/4 ; 21.5 min
IMO C
Re: A particular rocket car can travel for sustained periods at a maximum   [#permalink] 31 Mar 2019, 10:01
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