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Q.

The scale of a map is 1: 4000000. What is the actual distance between the two towns if they are 5 cm   apart on the map?


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a

200

b

350

c

120

d

400 

answer is A.

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Detailed Solution

Given,
Ratio of scale of a map is 1: 4000000.
Let x be the actual distance between towns.
Then,
1:4000000=5:x  
⇒x=5×4000000  
⇒x=20000000cm         [∴1km=100000cm]    ⇒x=200km  
Thus, the actual distance between the two towns will be 200 km.
Therefore, option 1 is correct.
 
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The scale of a map is 1: 4000000. What is the actual distance between the two towns if they are 5 cm   apart on the map?