A does a work in 10 days and B does the same work in 15 days.
A does a work in 10 days and B does the same work in 15 days. In how many days they together will do the same work ?
Answer/Solution
6 days
Steps/Work
Explanation:
Firstly we will find 1 day work of both A and B, then by adding we can get collective days for them,
So,
A's 1 day work = 1/10
B's 1 day work = 1/15
(A+B)'s 1 day work =
(1/10+1/15)=(3+2/30)=1/6
So together they can complete work in 6 days.
Option B
Firstly we will find 1 day work of both A and B, then by adding we can get collective days for them,
So,
A's 1 day work = 1/10
B's 1 day work = 1/15
(A+B)'s 1 day work =
(1/10+1/15)=(3+2/30)=1/6
So together they can complete work in 6 days.
Option B