Question
Billy walked across a rectangular field not drawn on to scale from P to N to Q to R to S and covered a distance of 270 m. The length of the field is four times the breadth. If it cost $3 to cover 1 m2 of the field with grass, how much did it cost to cover the whole field with grass?
3 m

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Billy walked across a rectangular field not drawn on to scale from P to N to Q to R to S and covered a distance of 270 m. The length of the field is four times the breadth. If it cost $3 to cover 1 m2 of the field with grass, how much did it cost to cover the whole field with grass?