Task: Question Answering
Input (English): Problem: a man bought 10 crates of mangoes for $ 40 total . if he lost 2 of the crates , at what price would he have to sell each of the remaining crates in order to earn a total profit of 20 percent of the total cost ? 
Options: a ) $ 6 , b ) $ 8 , c ) $ 10 , d ) $ 12 , e ) $ 14
Output (English): a