Answer :
Answer:
In 1 day A can do 1/8 work
In 1 day A can do 1/10 work
in 1 day A+B can do (1/8 +1/10) 40rk
in 1 day A=B can do 9/40 work
so In 1/ (9/40) days A+B can do work together = 40/9 days
Step-by-step explanation:
Answer:
In 1 day A can do 1/8 work
In 1 day A can do 1/10 work
in 1 day A+B can do (1/8 +1/10) 40rk
in 1 day A=B can do 9/40 work
so In 1/ (9/40) days A+B can do work together = 40/9 days
Step-by-step explanation: