A can do a work in 15 days B in 14 days and C in 16 days . If they work on it together then in how many days required to complete the work?  Options: A) 3360/210 B) 3360/21 C) 3360/674 D) 3360/240 E) 3360/224
Person ( A ) ( B ) ( 3360/674 ) (A+B+3360/674)   Time - (15) ( 14 ) (16)   Rate - (224) (240) (210) (674)   Work - (3360) (3360) (3360) (3360)   therefore A+B+3360/674 requires (3360/674) days to complete entire work   = 3360/674   Answer is 3360/674
<result>C</result>
A can do a work in 15 days B in 14 days and C in 16 days . If they work on it together then in how many days required to complete the work?