    ‘Sentence 1: A and B can finish ‘a  work together in 12 days, and Band  C together in 16 days. If A alone  works for 5 days and then B alone  continues for 7 days; then remaining  work is done by C in 13 days. In  iow many days can C alone finish  the complete work?    Sentence 2: If 3 men or 4 women can  do-a’ piece of work in 16 days, in