Question

A can complete making a table in 20 days alone while B can complete the table in 60 days alone How much
time is taken by both of them together to finish making the table?

Answer 1

Answer:

A can complete making of a table in =20days

so the work of 1day for A=1/20

B can complete making a table in=60days

So they both make the table together in=1/20+1/60

=15days