Task: Question Answering
Input (English): Problem: a club wants to mix 25 pounds of candy worth $ 8.00 per pound with candy worth $ 5.00 per pound to reduce the cost of the mixture to $ 6.00 per pound. how many pounds of the $ 5.00 per pound candy should be used ?
Options: a. 30, b. 40, c. 50, d. 60, e. 70
Output (English): c