Question

10 A painter uses paint and thinner in the ratio 60:40. He uses 15 litres of paint to paint a house,
How much thinner will he use?
A. 5 litres B. 10litres C. 12.5 litres D. 22.5 litres

Answer 1

Answer:

B. 10 litres.

Step-by-step explanation:

Question says that,

A painter uses paint and thinner in tha ratio 60 : 40. If the amount of paint is 15 litres. Find how much thinner is used.

Given ratio of :

Paint : thinner → 60 : 40

Let's suppose use of :

➪ Paint = $60x$

➪ Thinner = $40x$

But, the paint used is 15 litres

So, we can say that

$\implies 60x = 15$

$\implies x = \dfrac{15}{60}$

$\implies \boldsymbol x = \sf \dfrac{1}{4}$

Therefore, the value of $x\: {\sf{ is} }\: \dfrac{1}{4}$

Hence, the thinner used is :

$\to \boldsymbol{40x }= \sf 40 \times \dfrac{1}{4} = 10 litres.$

Answer 2

Question :

A painter uses paint and thinner in the ratio 60:40. He uses 15 litres of paint to paint a house,

How much thinner will he use ?

Solution :

Let the paint and thinner used be 60 x and 40 x

But we are given that 15 litres of paint is used

So ,

60x = 15

x= 15/60

x= 1/4

Putting value of x

Thinner used = 40x

=40×1/4

= 10 litre

So , answer is B