37. A and b can do a piece of work in 30 days , while b and c can do the same work in 24 days and c and a in 20 days . They all work together for 10 days when b and c leave. How many days more will a take to finish the work?
Answers
Answered by
0
Let total work be 120 units (LCM of 30, 24 and 20).
(A+B)'s one day work = 4 units
(B+C)'s one day work = 5 units
(C+A)'s one day work = 6 units
Adding all three equations and then dividing by 2,
(A+B+C)'s one day work = 7.5 units
A's one day work = 7.5 - 5 = 2.5 units
In 10 days, all three complete 75 units of work. Remaining 45 units can be completed by A in 18 days (at rate of 2.5 units per day).
Answered by
0
What is your name. It is helping you. Hi i am aman kumar jangra
Attachments:
Similar questions