Question

Excluding stoppages, the speed of a bus is 54 km/hr and including stoppages, it is 45 km/hr. for how many minutes does the bus stop per hour?

Answer 1

10 minutes/Hrs
Right answer
9*6=54(here 9 km was covered in 10 minutes)

Answer 2

take difference of both speeds
it comes 54-45=9
now we know that speed = distance ÷time
➡️45=9÷t
$45 = 9 \div x \\ x = 0.2$

that is equal to 0.2
now because speed is per hour so multiply it by 60
that is
$0.2 \times 60 = 12$
that ans is 12 min hope it helped if it's right not sure