Worker I can finish a work in 20 days and together with Worker II if they can finish the same work in 15 days .In how many days can worker II finish the same work working alone?
Worker I can finish a work in 20 days and together with Worker II if they can finish the same work in 15 days .In how many days can worker II finish the same work working alone?
Worker I= 20 days
Worker II & worker II= 15 days
but working at the same rate, both should complete the work in 10 days,
this means woker 2 is 50% slower
worker II= 1.5 times of Worker I more days to work
Worker II= 1.5 * 20 days = 30 days.
Answer is 30 days