does 80% of a work in 20 days. He then calls in B and they together finish the remaining work in 3 days. How long B alone would take to do the whole work?

does 80% of a work in 20 days. He then calls in B and they together fi

1.	does 80% of a work in 20 days. He then calls in B and they together finish the remaining work in 3 days. How long B alone would take to do the whole work?
A.	23 days
B.	37 days
C.	37(1/2) days
D.	40 days
Answer» B. 37 days