A can do half the work in one day where as B can do it full. B can also do half the work of C in one day. Ratio in their efficiency will be?  Answers:  A) 3:2:4  B) 2:2:4  C) 1:2:4  D) 4:2:4  E) 5:2:4
c   1:2:4   W1:2:4 of A: B = 1:2   B: 1:2:4 = 1:2   ---------------------   A: B: 1:2:4 = 1:2:4
<result>C</result>
A can do half the work in one day where as B can do it full. B can also do half the work of C in one day. Ratio in their efficiency will be?