Question

# The volume of a closed cubical tank is 1331 cubic metre. Find the length of the side of the cubical tank 12 m 13 m  11 m  20 m

Solution

## The correct option is C 11 m  Let the side of the given cubical tank be 'a' metres . Volume of the given cube is a×a×a  Length of the side of cubical tank = 3√volume Given that volume = 1331 cubic metre   Length of the side of cubical tank = 3√1331 Prime factorizing 1331 we get 1331=113 ∴ Cube root of 1331 is 11 Hence, the length of the side of the cube = 11 m

Suggest corrections