Question

A bike is moving with a constant speed 15mps. Find the distance travelled by the bike in 2hr

Answer 1

speed of bike = 15 m/s

to convert m/s into km/hr
we have to multiply it by 18/5

so
$= 15 \times \frac{18}{5} \\ \\ = 3 \times 18 \\ \\ = 54$
so the speed comes 54 km/hr

we know that speed = distance / time
so,
distance = speed x time

$= 54 \times 2 \\ \\ = 108$
so the distance travelled = 108 km/hr