1.

Akhil covered a distance of 15 km in 60 minutes. He covered first part of the journey by walking at 4.5km/h and the rest of the journey by a car at 30 km/h. Find the distance covered by the car

Answer»

Average speed = 15/1= 15km/hLet Akhil covered distance by walk be xthen distance by car be 15-xx/4.5 + 15-x/30= 110x/45+ 15-x/30= 1{20x+3(15-x)}/90= 120x+45-3x=9017x=45x= 45/17=2.6km (approximately)



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