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Question

An aeroplane flies 750 km in 40 min. Find the time taken by it to cover a distance of 900 km.

A
24 minutes
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B
12 minutes
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C
48 minutes
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D
36 minutes
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Solution

The correct option is C 48 minutes
speed=distancetime

distance=750 km
time=40 min

speed=75040=18.75 km/min

Now to cover of distance of 900 km. we consider
distance=900 km

Using the formula, we get
18.75=900time

time=18.75900
time=48 minutes

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