P can do a piece of work in ‘x’ days; Q can do the same work in 4x days. To finish the work together they take 16 days. What is the value of x?
1
25
2
20
3
15
4
30
5
45
P can do a piece of work in ‘x’ days; Q can do the same work in 4x days. To finish the work together they take 16 days. What is the value of x?