Question

formula of average speed in kilometre per hour​

Answer 1

Explanation:

Time = Distance / speed = 1800/40 = 45 hours. Thus we can find the average speed as: Average Speed = (Total distance)/(Total Time) = (1800 + 1800)/(30 + 45) = 3600/75 = 48 km/hr.

Answer 2

$\huge{\boxed{\red{\mathfrak{Answer}}}}$

TOTAL DISTANCE=x

TOTAL TIME=y

THEREFORE,

AVERAGE SPEED=x/y

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