Question

we can do a piece of work in 15 hours while Raman can do it in 12 hours how long will both take to do it working together

Answer 1

Answer:

Step-by-step explanation:your's per hour work =1/15

Raman's per hour work =1/12

If you both work together per hour

= 1/15 + 1/12

= 3/20

So you people can do in 20/3 hours

I.e, 6 hours 2/3 min