A horse takes 2 (1/2) seconds to complete a round around

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A horse takes 2 (1/2) seconds to complete a round around a circular field. If the speed of the horse was 66 m/sec, then the radius of the field is, [Given π = 22/7]

Distance covered in one revolution = Circumference of circular field = 2πr
Again,
speed of horse = 66 metre/second

Time =	5	Second
	2

∴ Distance covered = 66 ×	5	= 165 metre
	2

∴ 2πr = 165

⇒ 2 ×	22	× r = 165
	7

⇒ r =	165 × 7	= 26.25 metre
	2 × 22