Question

Niharika can do a piece of work in 30 days and Niyati can finish it in 25 days. They work together for 10 days and then Niharika leaves . In how many days will Niyati finish the remaining work?
Who can solve this​

Answer 1

Answer:

In 1 day A can do 1/25th part.

In 1 day B can do 1/30th part.

Together in 1 day they do 1/25+1/30=11/150 th part. So in 5days they do 5×11/150=55/150=11/30th part of work.Work remains 1-11/30=19/30th part. So A will work for 25×19/30=95/6=15 days 20 hrs to complete the remaining work.

Ans: 15 days 20 hrs.