• Login via
  • or
  • New here ?

A works twice as fast as B. if B can complete a work in 12 days independently,
the number of days in which A and B can together finish the work is:

A.4 days
B.6 days
C.8 days
D.18 days
Answer and Feedback
Answer:A
Feedback:That is, if b alone can finish the work in 12 days,
A alone can finish the work in 6 days.
If A can complete a work in x days and B can complete the same work in y days, then, both of them together can complete the work in x y/ x+ y days.
A and B can together finish the work in 6 × 12/18 days = 4 days.

do you want?

view more test

Share this post

Some other questions you may be interested in.

Loading...