Answer:
c) $10 per pound
Step-by-step explanation:
Differential cost is the cost difference of one plan when compared to another. it is the difference in cost between 2 alternative decision.
The product x has a cost of $ 15 per pound . The company later modified product X to produce product Y. The additional cost for product Y after modification of X is $ 10. The cost of producing product Y is 15 + 10 = $ 25.
The differential cost of producing product Y is the difference of the cost of producing product Y and product X. it can be computed as 25 - 15 = $ 10 per pound .