A square tank of capacity 250 cubic meters has to be dug out.

Question:

A square tank of capacity 250 cubic meters has to be dug out. The cost of the land is Rs. 50 per square metre. The cost of digging increases with the depth and for the whole tank, it is Rs. $\left(400 \times h^{2}\right)$, where $h$ metres is the depth of the tank. What should be the dimensions of the tank so that the cost is minimum?

Solution:

 

Leave a comment

Close
faculty

Click here to get exam-ready with eSaral

For making your preparation journey smoother of JEE, NEET and Class 8 to 10, grab our app now.

Download Now