G) 27. In how many days 'B' alone will finish the job?
I. A is twice as efficient as B.
II. A and B working together can do the job in 15 days.
c): By combining the two statements, we can answer the question.
Let B can do the job in 2x days so, A can do the job in
x days.
1/x + 1/(2x) = 1 / 15 ⇒ x= 45/ 2
Now, so, B can do the job alone in 45 days.
c): By combining the two statements, we can answer the question.
Let B can do the job in 2x days so, A can do the job in
x days.
1/x + 1/(2x) = 1 / 15 ⇒ x= 45/ 2
Now, so, B can do the job alone in 45 days.