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A rectangular park 60 m long and 40 m...

A rectangular park 60 m long and 40 m wide has two concrete crossroads running in the middle of the park and rest of the park has been used as a lawn. If the area of the lawn is 2109 sq. m, then what is the width of the road? (a) 2.91m        (b) 3m       (c) 5.82m       (d) None of these

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