Numerical Ability

A super fast bus of KSRTC starting from 'Trivandrum' and reaches 'Attingal' in 45 minutes with an average speed of 40 km/hr. If the speed is increased by 10 km/hr how much time it will take to cover the same distance?

(a) 34 minutes (b) 36 minutes (c) 38 minutes (d) 40 minutes

This question is related to TCS Interview

Questions by devisree2112

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Answer is 36 mins
We can approach the problem as follows
First we have to find the distance we can do so by
speed = 40
Time = 45 mins

hence dt = speed * tt

dt = 2 * (15)
dt = 30

Now the speed can be increased by 10
now the speed is 50
tt = dt/speed
tt = (30/50) * 60
tt = 0.6 * 60
tt = 36.0

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