Question

Aand B
can finish a peice of work in 15 days B andc in
20 days whileCand A in 30 days how long will they
take to finish it together.​

Answer 1

Answer:

55days

Step-by-step explanation:

if I am not wrong then

20+15+30=55.

This is because they mentioned the term together... This means that we would all the days together to find out the answer...

HOPE U UNDERSTOOD

Answer 2

• work done by (A+B) in one day=1/30
• work done by (B+C) in one day=1/20
• work done by (C+A) in one day=1/15
• work done by2(A+B+C) in one day= 1/30+1/20+1/15= 3/20