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Aptitude · Q229

Time And Work

Competitive Exams · Aptitude · question 229

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
Answer
B.
2 : 1 : 4
C.
4 : 2 : 1
D.
2 : 4 : 1

Answer: Option A

Solution

Answer: Option A
Solution:
A : B = 1 : 2
B : C = 1 : 2 (Multiply by 2)
B : C = 2 : 4
A : B : C = 1 : 2 : 4