Question

An object moves from A to B covering a distance of 100 km a speed of 50 km per hour it covers a further distance of 180 km from 'B' and reaches CLITHEROE a speed of 60 km per hour. What is a average speed of a object ??

Answer 1

average speed =

$\frac{total \: distance}{total \: speed}$

$\frac{100 \: + \: 180}{50 \: + \: 60}$

$\frac{280}{110}$

$2.54km \: per \: hour$