two buses start from the same bus stand at 8am . one travels at 40km/h and the other at 50km/h . the second bus reaches the next stop at 10am. how much later will the first bus arrive?
time taken = 10 am - 8 am
= 2 hrs
distance won't change so
Distance = speed multiply time.
50 times 2
=100 km
then time taken 100 divide by 40
= 2 hrs 30 min
so from 8 am add 2hrs 30min
=10:30 am