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A new unit for measurement for speed known as mphh (miles pe
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22 Feb 2020, 22:06
22 Feb 2020, 22:06
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Question Stats:
66% (01:53) correct
33% (01:28) wrong based on 3 sessions
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A new unit for measurement for speed known as mphh (miles per half an hour) is to be introduced in a country. Previously, the country had a speed limit of 90 kph (km per hour). Given that the speed limit remains the same, find out by how much is a car over-speeding in mphh, if it is traveling at a speed of 35 mphh?
(The answer is to be rounded off to one decimal place. Given, 1 mile = 1.6 km)
A) 20.3
B) 13.7
C) 6.9
D) 8.5
E) 5.7
(The answer is to be rounded off to one decimal place. Given, 1 mile = 1.6 km)
A) 20.3
B) 13.7
C) 6.9
D) 8.5
E) 5.7
Intern
Joined: 16 Feb 2020
Posts: 7
Given Kudos: 0
GRE 1: Q167 V152
GPA: 2.7
Re: A new unit for measurement for speed known as mphh (miles pe
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23 Feb 2020, 01:18
23 Feb 2020, 01:18
1
Speed limit = 90 kph
1 mile = 1.6 km
So,
Speed limit = 90 kph = 56.2 mph
Converting it into mphh,
56.2 mph = 56.2 / 2 mphh = 28.1 mphh
So, the speed limit in miles per half an hour is 28.1 mphh
The car is over-speeding by:
= 35 -28.1
= 6.9 mphh
Therefore, the answer is:
C) 6.9
1 mile = 1.6 km
So,
Speed limit = 90 kph = 56.2 mph
Converting it into mphh,
56.2 mph = 56.2 / 2 mphh = 28.1 mphh
So, the speed limit in miles per half an hour is 28.1 mphh
The car is over-speeding by:
= 35 -28.1
= 6.9 mphh
Therefore, the answer is:
C) 6.9
gmatclubot
Re: A new unit for measurement for speed known as mphh (miles pe [#permalink]
23 Feb 2020, 01:18
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