Answer:
See the attached file for the answers.
Step-by-step explanation:
See the attached file for the explanation
Answer: 1p/5
Step-by-step explanation:
It’s A. I hope that helps
Answer:
-1.5
Step-by-step explanation:
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