A car completes a certain journey in 6 hrs at a speed of 50 km/hr. by how much the speed of the car must be increased to cover the same distance in 4 1/2 hrs?
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Answered by
4
speed*time=distance 50*6=300 increase the speed s=300/9/2=66.66
Answered by
3
Distance = speed * time
= 50 * 6
= 300km
Speed = 300/4.5
= 66.66km/hr
veronica11:
Nic
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