9. You have 160 tons of below deck tonnage and 300 tons of above deck cargo on board. You must load 110 tons of liquid mud below deck. How much more deck cargo can you load

The correct answer is 55 tons. Adding 110 tons of liquid mud results in 270 tons below deck, allowing a maximum of 355 tons on deck. Since 300 tons are already on deck, only 55 more tons can be loaded.