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?tvb now,tvbnow,bttvb4 ~, J3 m, ]# B
A.50os.tvboxnow.com' X6 \- n" E7 p# w. h) Q6 N% P5 l
B.60tvb now,tvbnow,bttvb5 j) q0 T5 I, s" l
C.65
* x3 u7 N* e( lD.75 |