Area of a rectangular Park is 15 metre more than the breadth. If someone wants to fence along the sides of the park and cost of fencing 1 metre is Rs 5, then find the cost of fencing all sides of the park.​

Answer

{1, 4, 7}

Detailed Solution

Concept:

Symmetric Difference of two Sets: Let A and B be two sets. The symmetric difference of sets A and B is the set (A - B) ∪ (B - A) and is denoted as A Δ B.

i.e A Δ B = (A - B) ∪ (B - A)

The Venn diagram representation of symmetric difference of two sets is shown below

F2 A.K 23.5.20 Pallavi D7

Calculation:

Given: A = {x: x ∈ N and x2 < 36} and B = {x: x ∈ N and x is a prime number less than 9}

The elements of set A are: 1, 2, 3, 4, 5

i.e A = {1, 2, 3, 4, 5}

Similarly, the elements of set B are: 2, 3, 5, 7

i.e B = {2, 3, 5, 7}

As we know that, A Δ B = (A - B) ∪ (B - A)

⇒ A - B = {1, 4} and B = {7}

⇒ A Δ B = (A - B) ∪ (B - A) = {1, 4, 7}

Answer:

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Explanation:

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Answer:

57905.84 cm

This the appropriate answer hope this will help you

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