Math Problem Statement
John, Micheal and Christopher are running a supermarket. To deliver the products they use three different types of carry bags, they are polythene bags, handmade bags and newspaper envelopes. It is found that John, Michael, and Christopher are using 20, 30 and 40 polythene bags. 30, 40 and 20 handmade bags, and finally 40, 20 and 30 newspaper envelopes respectively in a month. The expenditures for procuring these bags are 250, 270 and 200. Use the above situation to answer
- Cost of each bag
- Which shopkeeper is best financially?
- Which shopkeeper is best environmentally? Solve this using matrix method
Solution
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Math Problem Analysis
Mathematical Concepts
Linear equations
Matrix operations
Systems of equations
Formulas
Matrix multiplication
Matrix inversion
Theorems
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Suitable Grade Level
High School
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