On the map with the scale of 1 / 2500000, the distance between the two cities is 10cm. If we discuss the distance between the two cities on a map, it is 3.125 Cm, what's the scale of that picture?

First of all, we should understand the meaning of scale: scale = distance on the map / distance on the spot; therefore, 1 / 2500000 means distance on the map 1cm, which means the actual distance 2500000cm = 25000m = 25km; so if the distance on the map is 10cm, it means the actual distance is 10 * 25 = 250km; secondly, in another map

1. On the map with the scale of 1:2000000, the distance between the two places is 10cm. How many kilometers is the actual distance between the two places?

Let the actual distance be x cm
10/X=1/2000000
X=20000000
20000000cm = 200km

On a map with a scale of 1:2000000, the distance between a and B is 10cm. On a map with a scale of 1:4000000, the distance between a and B is 10cm
What is the distance between the two places in cm

The distance on the graph is proportional to the scale;
Let the distance between two maps be X
（1：2000000）：10cm=（1：4000000）：x
X = 5 cm

China's Shenzhou-5 manned spacecraft landed in Siziwang Banner in Inner Mongolia. On a map with a scale of 1:15000000, the distance between Siziwang Banner and Beijing is 3cm. How many kilometers is the actual distance between the two places?

A: the distance between the two places is 450 km

On a map with a scale of 1:15000000, the distance between Siziwang Banner and Beijing is 3cm. The actual distance between the two places is about 3cm______ Kilometers

3 △ 115000000 = 45000000 (CM), 45000000 cm = 450 km; a: the actual distance between the two places is about 450 km

On a map with a scale of 1:15000000, the distance between Siziwang Banner and Beijing is 3cm. The actual distance between the two places is about 3cm______ Kilometers

3 △ 115000000 = 45000000 (CM), 45000000 cm = 450 km; a: the actual distance between the two places is about 450 km

On a map with a scale of 1:12000000, the distance between Siziwang Banner of Mongolia and Beijing is 3cm. What is the distance between the two places on the map?

3 △ 1 / 12000000 = 36000000cm = 360km

On the map with the scale of 1:200, the distance between a and B is 4.5cm, so the actual distance between a and B is___ m．

Suppose that the actual distance between a and B is xcm, 1:200 = 4.5: X, x = 900cm, ∵ 900cm = 9m, and the actual distance between a and B is 9m

On the map with a scale of 1:680000, the measured distance between AB and ab is 12.5cm. What is the actual distance between AB and ab?
accuracy

12.5x6.8
=12.5x8x0.85
=85(km)

On a map with a line scale of 1:2000, the distance between a and B is 3.5cm. How many kilometers is the actual distance between a and B?

3.5 △ 12000 = 7000 (CM) = 0.07 (km); a: the actual distance between a and B is 0.07 km

On the map with the scale of 1 / 2500000, the distance between the two cities is 10cm. If we discuss the distance between the two cities on a map, it is 3.125 Cm, what's the scale of that picture?