For the 70 m long pipeline,
3 m and 5 m long pipes are
used. If the price for shorter
pipe is $10 per piece and
for the other one $20 per
piece, what is the price of
the most profitable usage
of pipes?
Answers
Given : 70 m long pipeline, 3 m and 5 m long pipes are used
price for shorter pipe is $10 per piece and for the other one $20 per
piece
To Find : price of the most profitable usage of pipes
Solution:
Let say x pipes of shorter and y pipe of other one
3x + 5y = 70
Cost = 10 x + 20y = 10 (x + 2y )
3x + 5y = 70
y x cost 10 (x + 2y ) in $
14 0 280
11 5 270
8 10 260
5 15 250
2 20 240
20 shorter pipes and 2 other pipes are most profitable usage
of pipes
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