4. A car can cover 360 km in 5 hours. What should be the speed of the car if it has to cover
same distance in 4 hours?
S. S pipes can fill a tank in 80 minutes. How long will it take to all the tank if 8 pipes are
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(4) Distance = 360 km
Time = 4 hours
Speed = Distace / time
= 360 / 4
= 90 km/hr
So, the car should have a speed of 90 km/hr to travel a distance of 360 km in 4 hours.
(5) P1T1 = P2T2
5 x 80 = 8 x T2
T2 = (5x80)/8
T2 = 50 min (Ans)
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