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Question:

The capacity of a cuboidal tank is 50000 litres of water. Find the breadth of the tank, if its length and depth are respectively 2.5m and 10m

Solution:

Let breadth(b)=x
l=2.5m,h=10m
V=l×b×h=(2.5×x×10)m³=25x m³
Capacity of a tank=25x m³=50000 litres
→25x m³=50 m³
→x=2
Hence,b=2 m.