Question

pls help me solve this guys

Answer 1

~Total population=5400
~amount of water needed per day per
person=60litres
therefore, amount of water needed for the whole population per day=5400×60
=324000litres
as 1m^3=1000litres
324000litres=324m^3
length of river=49m
breadth of river=27m
width of river=25m
no. of days the water will last=324/49×25×27
=102days