Task: Question Answering
Input (English): Problem: ajay and vijay have some marbles with them . ajay told vijay ` ` if you give me ' x ' marbles , both of us will have equal number of marbles ' ' . vijay then told ajay ` ` if you give me twice as many marbles , i will have 30 more marbles than you would ' ' . find ' x ' ? 
Options: a ) 7 , b ) 5 , c ) 6 , d ) 4 , e ) 3
Output (English): b