Question

The total cost of cultivating a rectangular field at Rs.15 per mºis 18330. If the breadth
of the field is 26 m, find the cost of fencing the field at Rs.20 per metre.
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Answer 1

AnswEr :

• Total Cost of Cultivating Rectangular Field is Rs.18330 @ Rs.15 per m²
• Breadth of Field is 26 m.
• Find the cost of Fencing of the field at the Rate of Rs. 20 per metre.

⋆ Reference of Image is in the attachment :

• Let's Head to the Question Now :

⇒ Cost of Cultivation = Rate × Area

⇒ 18330 = 15 × Area

• Dividing Both term by 15

⇒ Area = 1222 m²

And, we know that area of rectangle is product of length and breadth i.e. ( lb )

⇒ Area of Field = Length × Breadth

⇒ 1222 m² = Length × 26 m

• Dividing Both term by 26

⇒ Breadth = 47 m

_________________________________

• Perimeter and Fencing Cost will be :

⇒ Cost of Fencing = Perimeter × Rate

⇒ Cost of Fencing = 2( l + b ) × Rate

⇒ Cost of Fencing = 2( 26 + 47 ) × 20

⇒ Cost of Fencing = 2 × 73 × 20

⇒ Cost of Fencing = Rs. (40 × 73)

⇒ Cost of Fencing = Rs. 2920

∴ Cost of Fencing of Field is Rs. 2920

Answer 2

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→ The total cost of cultivating a rectangular field at Rs.15 per mº = 18330.

→ Breadth = 26m.

→ Cost of cultivation of rectangular field = rate × area

→ let's find it !!

→ 18330 = 15 × area

→ 18330/15 = area

→ area = 1222 m²

now , area of rectangular field = l × b

→ 1222 = 26 × l.

→ l = 1222/26

→ l = 47 m

now , fenching of field

= rate × perimeter

→ 20 × 2( l + b )

→ 20 × 146

→ ₹ 2920