Task: Question Answering
Input (English): Problem: if 1 / 3 of the passengers on a ship are from north america , 1 / 8 are europeans , 1 / 5 are from africa , 1 / 6 are from asia and the remaining 42 people are citizens of other continents , then how many passengers are on board the ship ? 
Options: a ) 240 , b ) 250 , c ) 280 , d ) 300 , e ) 320
Output (English): a