A race track is in the shape of a ring whose inner and outer circumfer – McqOptions

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1.	A race track is in the shape of a ring whose inner and outer circumferences are 440 m and 506 m, respectively. What is the cost of levelling the track at Rs 6/m2?(take π = 22/7)
A.	Rs. 29,799
B.	Rs. 19,866
C.	Rs. 18,966
D.	Rs. 24,832
Answer» B. Rs. 19,866

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