Task: Question Answering
Input (English): Problem: in a village of 2,700 people , 900 people are over 70 years old and 1200 people are female . it is known that 40 percent of the females are younger than 70 years old . if no one in the village is 70 years old , what is the probability that a person chosen at random is either a male or younger than 70 years old ? 
Options: a ) 3 / 5 , b ) 7 / 10 , c ) 11 / 15 , d ) 23 / 30 , e ) 31 / 45
Output (English): c