In order to plant four plants per metre, how many plants should you buy to edge your garden along the green path in the given figure?
A
25
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B
35
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C
36
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D
30
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Solution
The correct option is D
30
You can plant four plants in one metre. The perimeter of the garden = 1.25m + 3m + .75m + 2.5m = 7.5m 1 m has 4 plants 7.5 m will have 7.5 × 4 = 30 plants