(1). X and Y can complete a work in 8, 16 days. Consider two cases in which the two work on alternate days. case (i) X starts the work. case(ii) Y starts the work. What is the difference between the time taken in both the cases?

• (a). 1/4 days
• (b). 1/2 days
• (c). 1/3 days
• (d). 1/5 day
• (e). None of these