e P$11-9.()$ For a new TV series $$Stupidity Factor,$$ contestants are dropped into the ocean $(=1030$ kg$/$m$3)$ along with a Styrofoam $(=300$ kg$/$m$3)$ block that is $2$ m x $3$ m x $20$ cm thick. If too many contestants climb aboard the block and it sinks below the water surface, they are declared $$stupid$$ and abandoned at sea. Find the maximum number of $70$ kg contestants that the block can hold. $($No fractional contestants, please.