# Solution: Find the most economical dimensions for the open top rectangular tank

An open top rectangular tank with square bases is to have a volume of 10 cu. m. The materials for its bottom is to cost P15 per square meter and that for the sides, P6 per square meter. Find the most economical dimensions for the tank.

• A. 1.5 m x 1.5 m x 4.4 m
• B. 2 m x 2 m x 2.5 m
• C. 4 m x 4 m x 0.6 m
• D. 3 m x 3 m x 1.1 m

#### Problem Statement:

An open top rectangular tank with square bases is to have a volume of 10 cu. m. The materials for its bottom is to cost P15 per square meter and that for the sides, P6 per square meter. Find the most economical dimensions for the tank.

#### Problem Answer:

The most economical dimensions for the open top rectangular tank is 2m x 2m x 2.5m

Solution:

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