SOLUTION: A farmer bought 45 chickens. For some of them he paid R15 and for the rest R23 each. He paid R1819 altogether. How many chickens did he buy at R23 each?

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Question 1118722: A farmer bought 45 chickens. For some of them he paid R15 and for the rest R23 each. He paid R1819 altogether. How many chickens did he buy at R23 each?
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39623) About Me  (Show Source):
You can put this solution on YOUR website!
Simple application for two-variable linear system of equations

x at R15
y at R23
system%28x%2By=45%2C15x%2B23y=1819%29------that's from the description.

Does the system really make sense?
If all 45 were at R15, then cost 675 of R.
If all 45 were at R23, then cost 1035 of R.

No way to reach the "given" cost of R1819

Answer by ikleyn(52835) About Me  (Show Source):
You can put this solution on YOUR website!
.
Your formulation / (input data) is incorrect.


It is self-contradictory and describes an impossible situation, which NEVER may happen.