The length and breadth of play ground are 36 m and 21 m respectively. Flag staf

Question

The length and breadth of play ground are 36 m and 21 m respectively. Flag staffs are required to be fixed on all along the boundary at a distance of 3 m part. The number of flag staffs will be:

Options:

A . 37

B . 38

C . 39

D . 40

Answer: Option B

Perimeter = 2Ã—(36+21) m = 114 m
Number of flag staffs = (114/3) = 38

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