A journey by car takes 48 mins at 65 km /hr . how fast must the car go to finish the journey in 40 mins
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Step-by-step explanation:
Time tajen by car to complete journey = 48 min
speed of car = 65 km/h
we know
speed= timeDistance
65=(6048)D
D=65×6048=52km
∴ speed of car to cover this distance in 40 min
speed=(6040)52=4052×63=26×3
speed = 78 km/h
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