A rectangular field has the sides in the ratio of 3 : 4. The area of the field is 300 $$\text{m}^2$$​. The length and the breadth of the field are:

Correct option is D

Given:

Ratio of length to breadth = 3:4

Area of the rectangular field = 300 m²

Concept Used:

Area = Length $$\times$$​ Breadth

Solution:

Let the Length be 3x and the breadth be 4x

3x × 4x = 300

12x$$^2$$ = 300

x$$^2$$ = 25

x = 5

Length = 3 × 5 = 15 m

Breadth = 4× 5  = 20 m