there r 2 groups of worker.. skilled n partially skilled. if both group work togather they nid 30 days to finish the job. if partially skilled worker can oni do 2/3 of the skilled worker did in a day. how many days needed if only partially skilled worker is workin to finish the job?5.39.217.76) L3 y+ Z! t* ?+ R; C
A.50
7 o. }; i u8 A2 u) m' gtvb now,tvbnow,bttvbB.602 H1 Y/ Z: K8 O4 { S' Q: N
C.65tvb now,tvbnow,bttvb* s5 ?- g( U7 w0 ?! \1 k
D.75 |