Question

4. A sales person Ravi has the following record of
sales for the month of January, February and
March 2009 for three products A, B and C. He has
been paid a commission at fixed rate per unit but
at varying rates for products A, B and C.
Sales in Units
Months
Commission
ABC
January 9 10 2
800
February 15 5
900
March 16 1031
Find the rate of commission payable on A, B and C
per unit sold using matrix inversion method.
850​

Answer 1

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