Correct option (b) 33
Explanation:
A+B+C ………………6 days
[6 days total work]
According to the question,
Ratio of their efficiencies,
A : B : C
6 : 3 : 2
Total efficiencies (6+3+2) unit = 11 units
Total work = 11×6=66 unit
Therefore, time taken by C to complete the work