Question

An architect built a scale model of a shopping mall. On the model, a circular fountain is 20 inches tall and 22.5 inches in diameter. If the actual fountain is to be 8 feet tall, what is its diameter?

Answer 1

8 feet = 8*12 = 96 inches

96/20 = 4.8 ratio

22.5 x 4.8 = 108 inches = 9 feet diameter