A and B finish the job in 15 days.while A,B and C can finish it in 5 days . C alone will finish the job in
Choose the correct choice
A) 4.50 days B) 3.50 days C) 6.0 days D) 7.5 days E) 5.50 days
Explanation:   5 = (15 * x)/(15 + x)   75+5x=15x   10x=75   X=7.5   Answer: Option 7.5 days
<result>D</result>
A and B finish the job in 15 days.while A,B and C can finish it in 5 days . C alone will finish the job in