Question

running at an average speed of 80 kilometre per hour a house bus is a bus completed a journey in four one by two hour how much time will be the return journey take if the speed in increase 245 kilometre​

Answer 1

$\large\pink{Solution}$

$speed = 80 \: \frac{km}{hr}$

$time = 4 \frac{1}{2} hours = \frac{9}{2}hours$

$distance = speed \times time$

$distance = 80 \times \frac{9}{2} = 40 \times 9 = 360 \: km$

$\green{Now}$

$speed = 245 \frac{km}{hr}$

$time = \frac{distance}{speed}$

$time = \frac{360}{245} = 1 \frac{23}{49} hours$

$\large\red{Hope}$$\large\red{it}$$\large\red{helps}$