1.

1). 23 m2). 25 m3). 27 m4). None of these

Answer»

Let the length and breadth of the field be ‘l’ m and ‘B’ m respectively.

According to the question, the length of the field is 3 m more than twice the breadth

⇒ l = (2b + 3) m

We KNOW that,

PERIMETER of a rectangular field = 2(l + b)

⇒ 84 = 2(2b + 3 + b)

⇒ 84/2 = 3b + 3

⇒ b = 39/3 = 13 m

∴ b = 13 m

l = 2b + 3 = 2 × 13 + 3 = 29 m

∴ l = 29 m



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