Question 316087
Viral can do a piece of work in 10 days & Raja in 15days. If both of them
work together how long will it take to finish the work?
a) 6days
b) 5days
c) 7days
d) 8days
.
Let x = time it takes for both
then
x(1/10 + 1/15) = 1
x(15 + 10) = 150
x(25) = 150
x = 6 days