Question

6. Driving at 60km/h, Shashi takes 3 hours to reach home from office. If she drives
at 100 km/h, how much time will she take?

Answer 1

Given
Shashi take 3 hr to reach home
At speed 60 km/hr
Find
If she drive at 100 km/hr then time taken by she
Solve
First we find the distance
Formula
Distance = speed .time
Distance = (60)(3)
Distance =180 km

Now if she drive at 100km /hr
Then time taken to cover 180 km
Time = distance/speed
Time = 180/100
Time = 18/10
= 1+ 8/10 hr
= 1hr 48 minutes