Verified answer

Answer:

Therefore, cost of bordering is Rs. 52,800.

Step by step explanation:

Given :

Inner circumference = 440 m

Width of the track = 14 m

Rate of fencing = Rs. 100 per m

To find :

The Cost of bordering the outer circle

Solution :

Consider the -

• Inner circle's radius as r
• Outer circle's radius as R

★ Radius of inner circle -

Radius = 70 m

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★ Radius of outer circle -

Radius of outer circle = Radius of inner circle + Width of the path

Radius of the outer circle = 84 m

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★ Circumference of the outer circle -

Circumference = 528 m

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★ Cost of bordering -

Cost = Rs. 52800

Therefore, cost of bordering is Rs. 52,800.