A circular tank of diameter 2 m is dug and the earth removed is spread uniformly all around the tank to form an embankment 2 m in width and 1.6 in height find the depth of the circular tank
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Let r= radius of tank
h=depth of tank
R= radius of embankment (including radius of tank)
Volume of earth = Volume of tank
1.6 x pi x (R^2-r^2) = pi x r^2 x h
1.6 x (3^2-1^2) = 1^2 x h
1.6 x 8 = h
12.8 = h i.e. depth of tank
h=depth of tank
R= radius of embankment (including radius of tank)
Volume of earth = Volume of tank
1.6 x pi x (R^2-r^2) = pi x r^2 x h
1.6 x (3^2-1^2) = 1^2 x h
1.6 x 8 = h
12.8 = h i.e. depth of tank
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