Maths
A pavement 4m wide is constructed along the outer side of the boundary of the square shaped ground having its side of 13m lenght. Find the cost of levelling the pavement at the rate of Rs 1.25 per square meter.
Ans: Rs 150
I know it's not a question to be asked here, but I'm stuck in the question so bad. Please anyone who can solve this help me out.
Thanks.
Top answer
The size of the ground is 13 meters by 13 meters. That is 13 * 13 square meters. The size of the ground + pavement is (13+4) meters by (13+4) meters, or 17 * 17 square meters.
- The size of the ground is 13 meters by 13 meters.
- That is 13 * 13 square meters.
- The size of the ground + pavement is (13+4) meters by (13+4) meters, or 17 * 17 square meters.
- The area of the pavement is the area of the (ground+pavement) minus (the area of the ground).
- 25.
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The size of the ground is 13 meters by 13 meters. That is 13 * 13 square meters.
The size of the ground + pavement is (13+4) meters by (13+4) meters, or 17 * 17 square meters.
The area of the pavement is the area of the (ground+pavement) minus (the area of the ground). (17*17 - 13 * 13)
The rate is 1.25.
The cost is 1.25 * the area of the pavement.
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