niryuu/sni-each-converted huggingface dataset:
Problem: two tains of equal lengths take 10 seconds and 15 seconds respectively to cross a telegraph post . if the length of each train be 125 metres , in what time ( in seconds ) will they cross each other travelling in opposite direction ? 
Options: a ) 6 , b ) 14 , c ) 16 , d ) 20 , e ) 18
Output: a
Problem: a large tanker can be filled by two pipes a and b in 60 and 40 minutes respectively . how many minutes will it take to fill the tanker from empty state if b is used for half the time and a and b fill it together for the other half ? 
Options: a ) 30 , b ) 15 , c ) 20 , d ) 25 , e ) 50
Output: a