Question

6 litres of paint required to colour 900 m2 surface. Calculate the quantity of paint that is required to colour
4050 m2 of a similar surface.

Answer 1

According to the question,

• 6 litres of paint is required to colour 900 m²

Here, we need to find out the quantity of paint required to colour 4050 m²

Paint | Surface Area

6 Litres | 900 m²

x Litres | 4050 m²

Let us solve this question by using the concept of ratio and proportion.

$\boxed{6 : 900 \: : : \: x : 4050}$

$\implies \sf{900x = 4050 \times 6}$

$\implies \sf{x = \dfrac{4050 \times 6}{900} }$

$\implies \sf{x = 27 \: litres}$

∴ 27 litres of paint is required for colouring 4050 m²

KNOW MORE:

This question can also be solved by using unitary method.

Answer 2

Answer:

27litres

Step-by-step explanation:

Given:-

6litres of paint required to paint 900 square metres surface.

To find:-

The quantity of paint that is required to colour 4050 m2 of a similar surface.

Solution:-

Let's use variation

x | 6 | ?

y | 900 | 4050

• Here x various directly with y

$\\ \sf {:}\longrightarrow x_1y_2=x_2y_1$

$\\ \sf {:}\longrightarrow 6\times 4050=9000\times y_1$

$\\ \sf {:}\longrightarrow y_1=\dfrac{6\times 4050}{900}$

$\\ \sf {:}\longrightarrow y_1=\dfrac{24300}{900}$

$\\ \sf {:}\longrightarrow y_1=27$