Mr. James' class has a ratio of 2 boys to 3 girls. Ms. Smith's class has a ratio
of 1 girl to 2 boys.
Both classes have 30 students each. How many boys and
girls are in each class?

1. Mr James has 18 boys and 12 girls and Ms Smith has 20 boys and 10 girls

2. Mr James has 12 boys and 18 girls and Ms Smith has 20 boys and 10 girls

3. Mr James has 20 boys and 10 girls and Ms Smith has 12 boys and 18 girls

4.Mr James has 10 boys and 20 girls and Ms Smith has 18 girls and 12 boys

other:

please help 20points !!!

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."