Question

The area of a rectangular plot is 308 sq m and its breadth is 11m. Find the length of the plot and the cost of fencing at the rate of Rs. 7.50 per metre.

Answer 1

Answer:

a=l*b

308=l*11

308/11=28

p=2(l+b)

2(28+11)

2(39)

78m

1=7.50

78*7.5o

₹585

I hope it will help you

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Answer 2

Given

• Area of Rectangular Plot ⇒ 308 m²

• Breadth ⇒ 11 m

• Cost of Fencing per metre ⇒ Rs. 7.50

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To Find

• The Length

• Cost of Fencing around the plot.

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Solution

Area of Rectangular Plot  ⇒ 308 m²

Area of Rectangle ⇒ Length × Breadth

Breadth ⇒ 11 m

Length ⇒ x m

Length ⇒ Area of Rectangle ÷ Breadth

Length ⇒ 308 ÷ 11

Length ⇒ 28 m

∴ The length of the plot is 28 m

Cost of Fencing per metre ⇒ Rs. 7.50

Perimeter of Rectangle ⇒ 2 (Length + Breadth)

Perimeter of Rectangular Plot ⇒ 2 (28 + 11)

Perimeter of Rectangular Plot ⇒ 2 (39)

Perimeter of Rectangular Plot ⇒ 78 m

Cost of Fencing ⇒ Perimeter × Rate of fencing Per Meter

Cost of Fencing ⇒ 78 × 7.5

Cost of Fencing ⇒ Rs. 585

∴ The cost of fencing at the rate of Rs. 7.50 per meter would be Rs. 585.

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