Question

Speed of a bus without stoppages is 54 km /hr and with stoppages the speed becomes 45 km/hr. How many minutes does the bus stop on an average per hour?

Answer 1

Question :-

Speed of a bus without stoppages is 54 km /hr and with stoppages the speed becomes 45 km/hr. How many minutes does the bus stop on an average per hour?

Answer:-

=> 10 minutes.

Step - by - step explanation :-

According to the question,

$\mathcal{without \: stoppage \: speed \: = 54 \frac{km}{hr} } \\ \mathcal{ speed \: with \: stoppage \: = 45 \frac{km}{hr} }$

Due to stoppage the bus covers 9 km less,

Therefore,

Time take to cover 9 km is ↓

$\implies \: t \: = \: \frac{9}{54} \: \: hr \\ \\ \bf{in \: minutes} \\ \\ \implies \: t \: = \frac{9}{54} \times 60 \: minutes \\ \\ \implies \: t \: = \frac{60}{6} minutes \\ \\ \implies \: \boxed{ t \: = 10 \: minutes}$