Question: I need help with Question 14 and 15. Can you please give me a detailed explanation of the problem? Ans 1.5 by 14. A circular

I need help with Question 14 and 15. Can you please give me a detailed explanation of the problem?

I need help with Question 14 and 15. Can you please give

Ans 1.5 by 14. A circular cylindrical can, open at one end, has external surface area 271 cm . Find the maximum volume of such a can. Ans: 274 cm 15. A box with a square base and a top is to be built with a volume of 20 cubic feet. The material for the base has density 3 1b per square foot, the material for the top has density 2 1b per square foot, and the material for the side has density 1 1b per square foot. What should the dimension of the box be so that its weight is minimum? Ans: 2 by 2 by 5

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