4 : 3 : 2
x - area unit
area of the kitchen = 4x
area of the playroom = 3x
area of the dinning room = 2x
The combined area of these three rooms is 189 ft².
Therefore we have the equation
4x + 3x + 2x = 189
9x = 189 Â Â |:9
x = 21 ft²
area of the kitchen = 4x = 4(21) = 84 ft²
area of the playroom = 3x = 3(21) = 63 ft²
area of the dinning room = 2x = 2(21) = 42 ft²
The area of the kitchen, playroom, and the dining room floor are 84ft², 63ft² and 42ft² respectively
The area of each floor will be:
Kitchen = 4/9 × 189ft² = 84ft²
Playroom = 3/9 × 189ft² = 63ft²
Dinning room = 2/9 × 189ft² = 42ft²
Therefore, the area of the kitchen, playroom and the dining room floor are 84ft², 63ft², and 42ft² respectively.
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