Akhil covered a distance of 15 km in 60 minutes he covered for part of the journey by walking at 4.5 km H and the rest of the journey by a car at 30 km per hour find the distance covered by the car ..
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Average speed = 15/1= 15km/h
Let Akhil covered distance by walk be x
then distance by car be 15-x
x/4.5 + 15-x/30= 1
10x/45+ 15-x/30= 1
{20x+3(15-x)}/90= 1
20x+45-3x=90
17x=45
x= 45/17=2.6km (approximately)
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