Question

4. The prices of three commodities A,
B and C are 3x, 3y and iz per unit
respectively. P purchases 4 units of C
and sells 3 units of A and 5 units of B.
Q purchases 3 units of B and sells 2 units
of A and 1 unit of C. R purchases 1 unit
of A and sells 4 units of B and 6 units of
C. In the process P, Q and R earn 6,000,
*5,000 and 13,000 respectively. By
using matrix inversion method, find the
prices per unit of A, B and C.​

Answer 1

Step-by-step explanation:

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