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.
Answers
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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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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