Question

P can do piece of work in 12 days and Q can do it in 15 days. In how many days can they finish it, if they work together?​

Answer 1

Answer:

6

Step-by-step explanation:

here is your solution..............

Answer 2

Answer:

6 days 16 hours

Step-by-step explanation:

part of work done by P in 1 day = 1/12

part of work done by Q in 1 day = 1/15

therefore,

part of work done by both in 1 day =  1/12 +1/15 = (12+15) / 180 = 27/180 = 3/20

=>

P & Q can do the work in 20/3 days or 6 days 16 hours approx