Question

A bike rider has to catch a bus which is already 3 hours on its route.How long will it take for the rider to catch the bus,if the riders speed is 80 km/h and the bus is moving at a speed of 60 km/h?​

Answer 1

Answer:

$\huge\fbox{Answer ☘}$

speed of the rider = 80 km/h

speed of bus = 60 km/h

Net speed = 80 - 60 = 20 km/h

distance covered by bus = 3 × 60 = 180 km

$\bold\blue{speed = \frac{distance}{time} }\\ \\ time = \frac{distance}{speed} \\ \\ \bold{ \: \: \: \: \: time = \frac{180}{20}} = 9 \: hours$

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