If the volume of a water tank is 6 m3, then it can hold 600 litres of water.
A water tank is 3 m long, 2 m broad and 1 m deep. How many litres of water can it hold?
If the ratio of capacities of 3 water tanks is 3: 5: 7 and the largest of them can hold 3500 litres of water, then what is the total volume of water that can be held by all the three tanks together?