IIMB 2001 (QA) PYQs

Aman, Baman and Chaman need a certain unique time to do a certain work. Chaman needs one hour less than Aman to complete the work. Working together, they require $60$ minutes to complete the job. The work also gets completed if Aman and Baman start working together and Aman leaves after one hour and Baman works for a further three hours. How much work does Charan do per hour?

A, B, and C can complete a piece of work in $10, 12,$ and $15$ days respectively. They start working together but after $2$ days, A leaves. B leaves $3$ days before the completion of the work, and C completes the remaining work alone. In how many days is the total work completed?

It takes ten days for four men and three women working together to complete a work. Two men would do the same work twenty-five days sooner than three women. How many times does the output of a man exceed that of a woman?