Question

A,B and C can do a piece of work in 16 days, 12 days and 15 days respectively. How long will they take to finish it if they work together​

Answer 1

Answer:

4 12/17

Step-by-step explanation:

Given,

A,B and C can do a piece of work in 16 days, 12 days and 15 days respectively.

A=1/16

B=1/12

C=1/15

How long will they take to finish it if they work together​

A+B+C=1/16+1/12+1/15

         =15+20+16/240

        =51/240

        =17/80

80/17=4 12/17