Question

a scale model of a double decker bus is 7.0cm high and 15.4cm long.if the bus is 4.2m high how long is it

Answer 1

9.24 m

Explanation:

Dimensions of the scale model:

• h = 7 cm
• l = 15.4 cm

Dimensions of the real bus:

• H = 4.2 m
• L =?

The ratio is:

• H/h = 4.2 m / 7 cm = 420 cm / 7 cm = 60

Then:

• L/l = 60
• L= 60 l = 60*15.4 = 924 cm = 9.24 m

The length of the bus is 9.24 m