|A) Option A||B) Option B|
|C) Option C||D) Option D|
Raghu can complete the work in (129)hrs = 108 hrs.
Arun can complete the work in (811)hrs = 88 hrs.
Raghu's 1 hrs work = and Arun's 1 hrs work =
(Raghu + Arun)'s 1 hrs work =
So, both Raghu and Arun will finish the work in
Number of days of 12 hours each= = .