Question

if X can finish a job in 4 hours and Y can finish the same job in 8 hours independently, then they together will finish the job in​

Answer 1

Answer:

2.6 hr

Step-by-step explanation:

in one hour x can do a job=1/4

in one hr y can do job= 1/8

both together do this job in

1/(1/4+1/8)

1/(3/8)

8/3 hr

2.6 hr

both will do this work in 2.6 hour