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Answer:Fence required for outer circle = circumference of the outer circle
Radius of inner circle = circumference of inner circle /(44/7)
Radius of inner circle = (115 *7)/44 [Circumference of circle = 2π * radius of circle]
Radius of inner circle = 18.3m
Radius of outer circle = Radius of inner circle + width of track
Radius of outer circle = 23.3m
Circumference of outer circle =( 2 *22*23.3)/7
Circumference of outer circle = 146.45m
Cost of putting fence along the outer circle of track = 146.45 * 120
Total cost required = 17574 rupees
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