Question

The area of a rectangular plot is increased by
30% and its width remain as it was before. What
will be the ratio between the area of new
rectangle and the original rectangle?
1. 13:10
2: 10:13
3. 7:3
4. 3:7​

Answer 1

Answer:

13 : 10

Step-by-Step Explanation:

Given that:  

• The area of a rectangular plot is increased by 30% and its width remain as it was before.

To Find:

• What will be the ratio between the area of new rectangle and the original rectangle?

Let us assume:

• Area of original rectangle be x cm².

Finding the ratio between the area of new rectangle and the original rectangle:

Area of new rectangle : Area of original rectangle

⟶ (100 + 30)% of x : x

⟶ 130% of x : x

⟶ 1.3 of x : x

⟶ 1.3x : x

Cancelling x:

⟶ 1.3 : 1

Multiplying by 10:

⟶ (1.3 × 10) : (1 × 10)

⟶ 13 : 10

∴ The ratio between the area of new rectangle and the original rectangle = 13 : 10

Answer: Hence, Option 1 is the correct answer.

Hope it helps you!!(●'◡'●)

Answer 2

Answer:

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Topic change pls