A metal ball weighs 200 Newton in air. When the ball is submerged in water it weighs 150 Newton. The weight of water displaced by the submerged ball is… A. 50
B. 150
C. 200
D. 100

Aproduction line at v. j. sugumaran's machine shop has three stations. the first station can process a unit in 7 minutes. the second station has two identical machines, each of which can process a unit in 16 minutes (each unit only needs to be processed on one of the two machines). the third station can process a unit in 10 minutes. ▼ is the bottleneck station, with a bottleneck time of nothing minutes per unit (enter your response as a whole number).