1.

A man and a boy complete a work together in 24 days. If for the last 6 days man alone does the work then it is completed in 26 days. How long the boy will take to complete the work alone?

Answer»

72 days



(MAN + BOY)’s 1 day’s work = 1/24 
Their 20 day’s work = 1/24 × 20 = 5/6 
The remaining 1/6 work is done by the man in 6DAYS 
Therefore, the man alone will finish the work in 6 × 6 days = 36 days 
Man’s 1 day’s work = 1/36 
Therefore, boy’s 1 day’s work = 1/24 – 1/36 = 3 – 2 /72 = 1/72 
Therefore, the Boy alone will finish the work in 72 days.



Discussion

No Comment Found

Related InterviewSolutions