Manuel puso en el suelo de su habitacion tarima de madera cada pieza cuadrada de tarima media 20cm de lado y uso 350 piezas que area recubrio en total si con cada paquete de piezas tenia madera para 4m2 cuantos paquetes necesito que area de madera le sobro

Asays "we are both knaves" and b says nothing. exercises 24–31 relate to inhabitants of an island on which there are three kinds of people: knights who always tell the truth, knaves who always lie, and spies (called normals by smullyan [sm78]) who can either lie or tell the truth. you encounter three people, a, b, and c. you know one of these people is a knight, one is a knave, and one is a spy. each of the three people knows the type of person each of other two is. for each of these situations, if possible, determine whether there is a unique solution and determine who the knave, knight, and spy are. when there is no unique solution, list all possible solutions or state that there are no solutions. 24. a says "c is the knave," b says, "a is the knight," and c says "i am the spy."

How do you solve a question like this?

What is the total area of the figure?