a and b can do a piece of work in 12 days, b and c in 15 days and c and a in 20 days. how much time will a alone take to finish

Question

saw5 [17]

2 years ago

7

a and b can do a piece of work in 12 days, b and c in 15 days and c and a in 20 days. how much time will a alone take to finish

the job

Mathematics

1 answer:

nydimaria [60] · Answer 1 · 2022-12-03T20:48:34+03:00

nydimaria [60]2 years ago

7 0

A and b can do a piece of work in 12 days. If a alone have to finish the job among b and c so

A and b=12
A (24 days alone without b)

So if b and c 15 days and c 20 days. If a have to do all I would add 24 and 15 and 20 which would be 59 days