SSC CHSL Model Paper 8

Question : 73 of 100

Marks: +1, -0

The number of sides in two regular polygons are in the ratio of 5 : 4. The difference between their interior angles of the polygon is 6°, then the number of sides are

15, 12
5,4
10, 8
20, 16

Validate

Solution:

Let the number of sides be 5x and 4x.
Then, difference between interior angles is

(180-360/{5x})-(180-360/{4x})=6°

⇒

x=3

So, number of sides = 15, 12

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