Question

Jegan has a road map with a scale of 1 cm = 20 km. He drives on a road for 72 km. What would be

his distance covered in the map​

Answer 1

Answer:

Let distance covered in map be x.

Here actual distance and distance covered in map are in direct proportion.

\frac{20}{1}=\frac{72}{x}\Rightarrow x\times18=72\times1

1

20

=

x

72

⇒x×20=72×1

\Rightarrow x=\frac{72\times1}{20}⇒x=

20

72×1

x=3.6x=3.6cm.

Hence the distance covered in map is 3.6cm.