SOLUTION: A can do a piece of work in 30 days,and B can do the same work in 40 days,if both do together then how many days it takes to complete the same work.

SOLUTION: A can do a piece of work in 30 days,and B can do the same work in 40 days,if both do together then how many days it takes to complete the same work.

Algebra.Com

Question 822074: A can do a piece of work in 30 days,and B can do the same work in 40 days,if both do together then how many days it takes to complete the same work.

Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
1/30+1/40=1/x
4/120+3/120=1/x
7/120=1/x
x=120/7=17.14

RELATED QUESTIONS
A,B and C can do a piece of work together in 15 days. B alone can do in 30 days and C... (answered by ankor@dixie-net.com)

If Mario can do a piece of work in 3 days and Joey in 2 days, in how many days can they... (answered by Alan3354)

Ramesh , Suresh and Harish can do a piece of work in 15 days, 10 days and 6 days... (answered by mananth)

A can do a piece of work in 16 days and B can do it in 20 days. These worked together for (answered by robertb)

A and B can do a piece of work in 40/3 days. A alone can do the work in 20 days. How long (answered by mananth)

1.'A' works twice as fast as 'B'. If both of them together take 6 days to complete the... (answered by josmiceli,vvnrichards)

A, B, and C can do a piece of work in 10 days. A and B can do it in 12 days, A and C in... (answered by josmiceli)

A,B, and C can do a piece of work in 10 days. A and B can do it in 12 days, A and C in 20 (answered by dkppathak)

A can do a piece of work in 60 days, which B can do in 40 days. Both started the work but (answered by ikleyn)