Stapleton Manufacturing intends to increase capacity through the addition of new equipment. Two vendors have presented proposals. The fixed cost for proposal A is $65,000, and for proposal B, $34,000. The variable cost for A is $10, and for B, $14. The revenue generated by each unit is $18.
(a) profits from A = price*quantoto - total cost
= 18Q - 10Q - 65000
= 8Q - 65000
profits from B = 18Q - 14Q - 34000 = 4Q - 34000
crossover point si when profits are same for both
=>8Q - 65000 = 4Q - 34000
=> 4Q = 31000
=> Q = 31000/4 = 7750
(b) when Q = 8300,
profit from A = 8*8300 - 65000 = 1400
profit from B = 4*8300 - 34000 = -800
Since profits from A is higher, it should be used
(c) A is preferable when, 4Q - 34000 > 8Q - 65000
=> 4Q < 31000
=> Q < 7750
(d) B is preferable when, 8Q - 65000 > 4Q - 34000
=> Q > 7750
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