 Hi and welcome to our session. Let us discuss the following question. The question says a conical bit of top diameter 3.5 meters is 12 meters deep. What is capacity in 10 meters? Before solving this question, we should know the formula for finding the volume of a cone. Volume of a cone is equal to 1 by 3 pi r square h, where r is the base radius. And h is the height of cone. The knowledge of this formula is the key idea in this question. Now, beginning with the solution, in the question, we are given the top diameter of conical bit 3.5 meters. As diameter is equal to 3.5 meters, so this implies its radius is equal to 3.5 by 2 meters, and this is equal to 1.75 meters. And the question is given that conical bit is 12 meters deep. So this means height of conical bit, that is, h is equal to 12 meters. We have to find its capacity in kilometers. Now, let's first find volume of conical bit. Volume of conical bit is equal to 1 by 3 pi r square h. By substituting the values of r and h, we get 1 by 3 into 22 by 7 into 1.75 into 1.75 into 12 meter q. On cancelling 12 by 3, we get 4. And on cancelling 1.75 by 7, we get 0.25. And on simplifying this, we will get 38.5 meter q. We have to find its capacity in kilometers. So let's now convert this into kilometers. We should know that 1 meter q is equal to 1 kiloliter. So this implies 38.5 meter q is equal to 38.5 kiloliter. Capacity of conical bit kiloliter is equal to 38.5 kiloliter. This is our required answer. So this completes the session by entity care.