Question

The first floor of a house consists of a kitchen, playroom, and dining room. The areas of the kitchen,
playroom, and dining room are in the ratio 4 : 3 : 2. The combined area of these three rooms is 189
square feet. What is the area of each room?

Answer 1

area of kitchen: 4x = 4(21) = 84 ft^2
area of playroom: 3x = 3(21) = 63 ft^2
area of dining room: 2x = 2(21) = 42 ft^2