Q229
A can do half of a piece of work in 1 day,where B can do full. B can do half the work as C in 1 day. The ratio of their efficiencies of work is = ?
A.
1 : 2 : 4
AnswerB.
2 : 1 : 4
C.
4 : 2 : 1
D.
2 : 4 : 1
Answer: Option A
Solution
Answer: Option A
Solution:
A : B = 1 : 2B : C = 1 : 2 (Multiply by 2)
B : C = 2 : 4
A : B : C = 1 : 2 : 4