Question

water in a river 2 metre Deep and 45m wide is flowing at the rate of 3 km per hour find amount of water in Cubic metres that runs into the sea per minute

Answer 1

$<marquee> Hi mate ☺☺☺☺:-P :-P </marquee>$

The quantity of water that is running in the river=Volume of the river
h=2m
b=45m
3km/h=3*5/18m/s=5/6m/s
therefore in one sec 5/6m of water flows in the river
l=5/6m
volume=lbh=2*45*5/6
=15*5=75cu.m=75000litres

$thanks$