If A, B and C together can finish a piece of work in 4 days; A alone can do it in 12 days and B in 18 days, then C alone can do it in :
Answer & explanation
Correct answer: option 4
The above chart was obtained after following the details of the question:
Efficiency of A + B + C = 9
Efficiency of A = 3
Efficiency of B = 2
Efficiency of C = 9 - (3 + 2) = 4
Days required by C alone to complete the work = \(\frac{36 }{4 }\) = 9 days