A hedge boundary needs to be planted around a rectangular lawn of size 72m×18m If 8 shrubs can be planted in a square meter of hedge, how many shrubs will be planted in all?
A
142
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B
154
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C
162
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D
178
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Solution
The correct option is C 162 Area of rectangular lawn =72m×18m 8 shrubs is planted in a square meter. Required number of plant = (72m×18m)8=162