Question

The average speed of a train non-stop is
90 km / h and due to repeated stops, its
average speed becomes 80 km / h. How
many minutes per hour does the train
stop?
(a) 6.667 (b) 5.8
(c) 6.25 (d) 3.89​

Answer 1

Step-by-step explanation:

stoppage time per hr=(change in speed)/(faster speed) hr

=10/90=1/9 hr= 1/9 *60 =60/9=6.667