Mathematical

Question

If A can do a work in 6 days, B can do same work in 12 days and C can do same work in 24 days. if A,B and C combine togather than in how much days they finish that work?

Answer 1

A does 1/6 job per day

B does 1/12 job per day

C does 1/24 job per day

 

(1/6 + 1/12 + 1/24)d = 1

(4/24 + 2/24 + 1/24)d = 1

(7/24)d = 1

d = 24/7

d = 3 3/7 days