Question

A student builds a model of a race car. The scale is 1:15. In the scale model, the car is 8 cm tall.How tall is the actual car?

Answer 1

let the actual height of car be x

now, according to question,

• $\dfrac{1}{15} = \dfrac{8}{x}$

• $x = 15 \times 8$

• $x = 120 \: \: cm$

• $height \: \: of \: \: car = 120 \: cm \: \: or \: \: 1.2 \: \: m$