7. A rectangular lawn 80 m × 60 m has two roads each 10 m wide runnin – InterviewSolution

1.	7. A rectangular lawn 80 m × 60 m has two roads each 10 m wide running in the middle of it, one paral-lel to the length and the other parallel to the breadth. Find the cost of gravelling them at R 1.20 persq metre.
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