Question

cost of fencing a rectangular field at rupees 24 per metre is rupees 1920 if its length is 23 M find its breadth

Answer 1

SOLUTION :

The breadth of the rectangle = 23 m (given)

The cost of fencing the field = Rs 1920 per m

Fencing is done on the perimeter of the field

so,

Perimeter of the rectangular field = total fencing cost ÷ fencing per metre

▶ 2(l+b) = 1920 ÷ 24

▶ 2(l+b) = 80

[ perimeter of rectangular field is 2(l+b), in which l is the length and b is the breadth of the rectangular field ]

️▶️2(23 + b)  = 80

️▶ 46 + 2b = 80

️▶2b = 80 - 46

▶2b = 34

️▶b = 34 ÷ 2

️▶b = 17

Hence

breadth of the rectangular field is 17 m

Answer 2

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$<b>Que:-) cost of fencing a rectangular field at rupees 24 per metre is rupees 1920 if its length is 23 M find its breadth</b>$

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$\huge\sf{\blue{\star{\underline{Answer}}\star}}$
$<i>$

$\sf\sf\sf\:perimeter = \dfrac{fencing}{cost}$

= 1920/24

⏩ ${\bold{\large{\green{\boxed{80}}}}}$

perimeter = 80m

perimeter = 2 (L+B)

80 = 2(23 +x )

80/2 = 23+x

40 = 23+ x

x = 40 - 23 = 17

$<b>breadth = 17 m</b>$

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$<b>$have a nice day

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