Amit and Ananthu can do a work in 15 days and 25 days respectively. Amit started the work and left after 3 days. Ananthu took over and completed the work. In how many days was the total work completed?
28 days
20 days
23 days
25 days
Explanation:
Amit’s one day’s work= 1/15
Amit’s 3 day’s work = 1/15 *3 = 1/15
Work left= 1-1/5 = 4/5
Ananthu’s one day’s work= 1/25
Ananthu can do work in = 4/5*25 = 20 days
So total days = 25+3 = 28 days
Amit’s one day’s work= 1/15
Amit’s 3 day’s work = 1/15 *3 = 1/15
Work left= 1-1/5 = 4/5
Ananthu’s one day’s work= 1/25
Ananthu can do work in = 4/5*25 = 20 days
So total days = 25+3 = 28 days