b) A can do a piece of work in 4 days and B can do a piece of work in 6 days. How long will they take to complete it together?
Answers
Answered by
0
It is given that
A can do a piece of work in 4 days B can do the same work in 5 days
A's one day's work = 1/4
B's one day's work = 1/5
A and B both one-day work =
4
1
+
5
1
=
20
5+4
=
20
9
A and B two day's work =
20
9
×2=
10
9
Answered by
0
Answer:
2.4 days
Step-by-step explanation:
a can do work one day 1/4
b can do worn in one day 1/6
mix them
both can do work one day 5/12
finish in 1/5/12=12/5
or 2.4 days
Similar questions