Question

the length of a rectangular field is 2 times its breadth if the perimeter of field is 72 M find its length and breadth

Answer 1

Let the breadth = b

length = l = 2b

Perimeter = 72

=> 2(l + b) = 72

=> 2(2b + b) = 72

=> 2 × 3b = 72

=> 6b = 72

=> b = 72/6 = 12m

l = 2b = 2×12 = 24 m

Hence, length is 24m and breadth is 12m

Answer 2

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Let the breadth = b

length = l = 2b

Perimeter = 72

=> 2(l + b) = 72

=> 2(2b + b) = 72

=> 2 × 3b = 72

=> 6b = 72

=> b = 72/6 = 12m

l = 2b = 2×12 = 24 m

Hence, length is 24m and breadth is 12m.

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