7. A and B can finish a piece of work in 6 days and 4 days respectively. A started the work, after 2 days,,B also joined the work. Find the total time taken to finish the work
Answers
Answered by
1
Step-by-step explanation:3 full days plus 3/5 day.
in Two days A finished 1/6×2=1/3 of work
work remaining after 2 days = 2/3
joint speed of A and B = 1/6+1/4= 10/24=5/12
to finish 2/3 , Time needed = 12/5×2/3= 8/5 days.
tota time =2+8/5=18/5=3+3/5
Answered by
4
Answer:
A finish the work = 1/3
B finish the work = 2/3
.
.
Step-by-step explanation:
hope it's helpful ☺️
Similar questions