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Question

A car covers a distance of 2 km in 2.5 minutes. If it covers half of the distance with speed 40 km/hr, the rest distance it shall cover with a speed of:

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Solution

Verified by Toppr

Given that,

Time t=2.5min

Distance d=2km

Now, firstly for half distance

v=dt

t=dv

t=60×6040

t=90s

Now, total time is

t=150−90

t=60s

Now, the speed is

v=dt

v=1×601

v=60km/h

Hence, the speed is 60km/h

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