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 if they all were together in how many days will the fresh work finish
Answers
Answered by
2
Answer:
16 days
Step-by-step explanation:
A + B = 30 days
efficiency of A + B = 1/30
B + C = 24 days
efficiency of B + C = 1/24
C + A = 20 days
efficiency of C + A = 1/20
efficiency of 2*(A + B + C) = 1/30 + 1/24 + 1/20)
or, ( A + B + C) = 15/240
A + B + C = 240/15 = 16 days
Similar questions