A and B finish the job in 15 days.while A,B and C can finish it in 11 days . C alone will finish the job in	Choose the correct choice from the following
A) 41.25 days
B) 30.25 days
C) 60.25 days
D) 71.25 days
E) 51.25 days

Rationale: explanation : 11 = ( 15 * x ) / ( 15 + x ) 165 + 11 x = 15 x 4 x = 165 x = 41.25 answer : option a
Answer: A