Question

2 The length of a rectangular field is twice of its breadth. If its perimeter is 72 m, then its breadth and length will be: (a) 15 m, 30 m (b) 12 m, 24 m (C) 13 m, 26 m (d) None of these n n​

Answer 1

Step-by-step explanation:

Let the length and Breadth of rectangle be 2x m and x m

Perimeter = 72m

A/C

2(2x+x) = 72

or, 2(3x) = 72

or, 6x = 72

or, x = 72/6

or, x = 12

Thus the length of rectangle is 12×2 m = 24m

and Breadth of rectangle is 12m

then options B is the answer

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Answer 2

Answer:

b) 12m , 24m

Step-by-step explanation:

let length= l , breadth= b

given l= 2b

perimeter=72m

perimeter = 2(length+breadth)

72m = 2(l + b)

72m = 2(2b +b)

72m = 2(3b)

72m = 6b

b = 12m

l = 2*12m

= 24m