Ajay and Vijay together can do a piece of work in 6 days. Ajay alone d...
Given:
Ajay and Vijay together can do a piece of work in 6 days.
Ajay alone does it in 10 days.
To find:
Time taken by Vijay to do the work alone.
Solution:
Let the work be 1 unit.
Let's assume that Vijay takes x days to finish the work alone.
According to the given information,
Ajay and Vijay together can do the work in 6 days.
So, the work done by Ajay and Vijay in one day is 1/6.
Ajay alone does the work in 10 days.
So, the work done by Ajay in one day is 1/10.
Let's assume that the work done by Vijay in one day is v.
So, the work done by Ajay and Vijay together in one day is (1/6) = (1/10) + v.
Simplifying the above equation, we get:
v = 1/6 - 1/10
v = 1/15
So, Vijay can do the work alone in 15 days.
Therefore, the correct option is (b) 15 days.
HTML representation of solution:
Given:
Ajay and Vijay together can do a piece of work in 6 days.
Ajay alone does it in 10 days.
To find:
Time taken by Vijay to do the work alone.
Solution:
Let the work be 1 unit.
Let's assume that Vijay takes x days to finish the work alone.
According to the given information,
Ajay and Vijay together can do the work in 6 days.
So, the work done by Ajay and Vijay in one day is 1/6.
Ajay alone does the work in 10 days.
So, the work done by Ajay in one day is 1/10.
Let's assume that the work done by Vijay in one day is v.
So, the work done by Ajay and Vijay together in one day is (1/6) = (1/10) + v.
Simplifying the above equation, we get:
v = 1/6 - 1/10
v = 1/15
So, Vijay can do the work alone in 15 days.
Therefore, the correct option is (b) 15 days.