How many fencing posts, spaced 5m apart, are required to fence a rectangular plot measuring 745 m by 230 m?

How many fencing posts, spaced 5m apart, are required to fence a rectangular plot measuring 745 m by 230 m?

A. 391
B. 390
C. 195
D. 196

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The correct answer is [B]

- Perimeter = 2 (L + W)
= 2L + 2W
= 2(745) + 2(230)
= 1490 + 460
= 1950 m
Spacing 5 m

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Wilfykil answered the question on August 2, 2019 at 08:17

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