The average weight of A, B, and C is 45 kg. If the average weight of A and B is 40 kg, and the average weight of B and C is 43 kg, determine the weigh...

Question

The average weight of A, B, and C is 45 kg. If the average weight of A and B is 40 kg, and the average weight of B and C is 43 kg, determine the weight of B.

Options

A.

20

B.

26

C.

31

D.

17

s.s.c., 2004weight calculationaveragesystem of equations

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