A farmer in St. Vincent measures the perimeter of a rectangular sugar cane field and records it as 240 metres. If the length of the field is 80 metres, what is the width?

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Question

A farmer in St. Vincent measures the perimeter of a rectangular sugar cane field and records it as 240 metres. If the length of the field is 80 metres, what is the width?

Accepted Answer

40 metres — Award 1 mark for correct answer. Perimeter = 2(length + width), so 240 = 2(80 + width). Therefore 120 = 80 + width, giving width = 40 m. B is incorrect because it results from the error 240 = length + width. C confuses width with length. D is incorrect because it uses only one side (240 - 80).

Answer

160 metres

Answer

60 metres

Answer

40 metres

Answer

80 metres

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