Question

A alone can finish a peice of work in 12 days and B alone can do it in 15 days how much time will time taken if both A and B work together ​

Answer 1

Answer:

Firstly

Reciprocal of A and B Days

(12/1=1/12)

Add (a+b)=(1/12+1/15)=9/60=3/20

Then,

Reciprocal the Answer =(3/20=20/3)

Mixed fraction of 20/3 is 6 whole 3/2 Days.

(Hence,both cab finish the work 8n 6 whole 2/3 days)