Answer is 113 but I come up with 125 A power plant currently

Answer is 1.13 but I come up with 1.25

A power plant currently uses coal from Source A but must switch to Source Given the following data about the coal sources, how much will the cost of generation per kWh increase or decrease because of the switch. If the switch increases generation cost, give your answer as a positive number. If the switch decreases generation cost, give your answer as a negative number. Express your answer in cents/kWh to the nearest 1/100th cent.

Solution

$ $ CenTs Coal Cost/Ton EPA/Ton KWh/Ton Cost/KWh Source A 34 140 7200 1.208333 Source B 69 80 7700 0.967532 SavinginCost 0.240801