Map Scales and Ratios

A map is drawn to a scale of 1 : 25 000. A small geological feature has a length of 8 mm on the map. Calculate the actual length, in metres, of this feature.

• 0.2 m

• 2 m

• 200 m

• 200 000 m

An island of area 51.84 km² is represented on a map by an area of 0.81 cm².

(a) Express the scale of the map in the form of 1 : n.

• 1 : 8

• 1 : 8000

• 1 : 80 000

• 1 : 800 000

• 1 : 1.5

• 1 : 1 500 000

• 1 : 150 000

• 1 : 1500

• 0.25

• 4

• 25 000

• 250 000

A map is drawn to a scale of 1 : 5000. A rectangular car park has a length of 10.5 cm on the map. Find the actual length of the car park in metres.

• 0.525 m

• 5.25 m

• 525 m

• 52 500 m

The scale on a map states that 3 inches=62 miles.  If the distance on the map from Daniel Morgan to James Madison is 75 miles, how many inches is that?

• 2.5 inches

• 4.3 inches

• .66 inches

• 3.63 inches

Which of the following is equivalent to the ratio 3:5

• 21:7

• 6:10

• 3:2

• 20:9

Solve the Proportion

• k=1

• k=4

• k=-1

• k=2

Solve the proportion

• b=1.70

• b=2.7

• b=1.07

• b=6