Task: Question Answering
Input (English): Problem: in may mrs lee ' s earnings were 70 percent of the lee family ' s total income . in june mrs lee earned 20 percent more than in may . if the rest of the family ' s income was the same both months , then , in june , mrs lee ' s earnings were approximately what percent of the lee family ' s total income ? 
Options: a ) 64 % , b ) 68 % , c ) 72 % , d ) 74 % , e ) 83 %
Output (English): d