Question

A road map has a scale of 1:30000
The length of a road on the map is 7cm
Workout the length in kilometres of the real road

Answer 1

Answer:

2.1 kilometers

Step-by-step explanation:

so here it says

1:30000

means, 1cm in the map is 30000cm in real life.

so the length of the road in the map is 7cm so it will be (30000 × 7)cm in real life

which will make it 210000cm in real life

now convert this to m by dividing it by 100 (1m = 100cm)

=> $\frac{210000}{100} =2100m$

now convert this to km by dividing it by 1000 (1km = 1000m)

=>$\frac{2100}{1000} =2.1km$

thus, answer: length in kilometres of the real road = 2.1km