A rectangular pool 20 metres wide and 60 metres long is surrounded by – McqOptions

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1.	A rectangular pool 20 metres wide and 60 metres long is surrounded by a walkway of uniform width. If the total area of the walkway is 516 square metres, how wide, in metres, is the walkway?
A.	43
B.	4.3
C.	3
D.	3.5
Answer» D. 3.5

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