Question

Vijayan can do a job in 25 days and Achyuth can do it in 20 days. Vijayan started the work and Achyuth joined af. ter 15 days and Vijayan left. How many days did Achyuth take to complete the ramaining job?

• A. 16
• B. 15
• C. 17
• D. 8

Answer 1

Answer:

D. 8

Total work can be taken as LCM of 25, 20 ie equal to 100 Efficiency of Vijayan 100/25 = 4 Efficiency of Achyuth = 100/20 = 5 Work done be Vijayan in 15 days = 15 x 4 = 60 Balance work = 100 - 60 = 40 No. of days to complete 40 works by Achyuth = 40/5 = 8 days