A human chain in the form of a circle of radius 56 m is formed at India Gate to protest against the rising prices of petrol. If each person is given two meters of space to stand, find how many persons can be accommodated in the chain.

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175

176

124

184

answer is B.

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Detailed Solution

Given that the human chain is in the form of circle of radius,

r = 56

cm.
We have to find the number of persons accommodated in the chain.
The circumference of a circle can be expressed as

C = 2 π r

. Here

r

is the radius of a circle.
Then, the circumference of the human chain is

C = 2 × 227 × 56 ⇒ C = 44 × 8 ⇒ C = 352

.
Since, each person is given 2 meters of space to stand. So, the number of people
could accommodate is,

n = C 2 ⇒ n = 3522 ⇒ n = 176

The number of persons accommodated in the chain is 176.
Therefore, the correct option is 2.

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