Question 54

A tank is in the form of a cuboid with length 12 m. If 18 kilolitre of water is removed from it, the water level goes down by 30cm. Whatis the width (in m) of the tank?

Solution

volume of water = 18 kiloliter = 18 cubic meter

Length of cuboid = 12m

Height = 30 cm = 0.3 m

Volume of water = $$length \times width \times height$$

18 = $$12 \times 0.3 \times width$$

Width = $$\frac{18}{3.6} = 5 m$$

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