Question

2. One man can do a piece of work in 3 hours; another can do the same piece of work in 2 hours. How
will they take, if they work together?
​

Answer 1

Answer: 72 MINUTES

Step-by-step explanation:

Let one hour work of first man be=x

Let one hour work of other man be =y

Total work to be done =z=3x=2y

Let them take n hours to complete the work together

⇒n(x+y)=z

⇒n(x+y)=3x

⇒n(x+  3x/2)=3x

⇒n(5x/2)=3x

⇒n=6/5=1.2hours or 72 minutes

MARK ME BRAINLIST

THANKS!!