A and B finish the job in 15 days.while A,B and C can finish it in 12 days . C alone will finish the job in	Pick one
A) 40 days  B) 30 days  C) 60 days  D) 70 days  E) 50 days
Explanation:   12 = (15 * x)/(15 + x)   180+12x=15x   3x=180   X=60   Answer: Option 60 days
<result>C</result>
A and B finish the job in 15 days.while A,B and C can finish it in 12 days . C alone will finish the job in