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A cuboidal water tank contains 216 litres of water. Its depth is 13 of its length and breadth is of the difference between length and depth. The length of the tank is

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720dm

18dm

6dm

20dm

answer is B.

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Detailed Solution

Let the length breadth and height of the water in the tank be l,b,h respectively. Then

we know that volume of cuboidal water tank is given as Length(L)×Breadth(B)×Depth(D)

Given volume of water =216

Hence, we have the length of the water tank is 18dm.
So, option 2 is correct.

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