A Car can cover a bridge in 28 minutes at the speed of 32 km/hr. If a motorcycle can cover the same bridge in 20 minutes, then what will be the speed of motorcycle?
A Car can cover a bridge in 28 minutes at the speed of 32 km/hr. If a motorcycle can cover the same bridge in 20 minutes, then what will be the speed of motorcycle?
Option 1 -
36.8 km/hr
Option 2 -
44.8 km/hr
Option 3 -
38.2 km/hr
Option 4 -
42.4 km/hr
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1 Answer
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Correct Option - 2
Detailed Solution:Distance is same. So, speed will be inversely propornonel to time.
Ratio of time taken by car and motorcycle = 28 : 20
= 7 : 5
So, ratio of speed of car and motorcycle = 5 : 7
5/7 = 32/M
M = (32*7)/5 = 44.8 km/hr
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