1. The problem statement, all variables and given/known data An inverted cone has a depth of 10cm and a base radius of 5cm. Water is poured into it at the rate of 1.5 cm^3/ min. Find the rate at which level of water in the cone is rising, when the depth of water is 4cm. 2. Relevant equations 3. The attempt at a solution I know that this question requires the application of chain rule. However having only recently studied it, I am yet to fully understand it's application. Therefore looking for an answer which gives a correct approach to such questions. Thanks.