Question

The ratio of brass and copper in an alloy is 3:5.If the weight of copper is 3.2kg,find the weight of brass in the alloy. write in steps. answer is 1.92kg.

Answer 1

Heya mate, Here is ur answer

Let the common ratio be x.

So,weight of brass =3x .

Weight of copper=5x .

Given that weight of copper in alloy is 3.2 kg.

A/Q

Weight of copper=3.2 kg

5x=3.2

$x = \frac{3.2}{5} \\ \\ x = \frac{32}{5 \times 10 } \\ \\ \\x = \frac{32}{50}$


So, weight of brass =3 x

$= 3 \times \frac{32}{50}$

$= \frac{96}{50}$


=1.92 kg.

So, weight of brass in Alloy =1.92 kg

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Answer 2

Solutions :-


Given :

The ratio of brass and copper in an alloy = 3 : 5
The weight of copper is 3.2 kg

Let the weight of brass in the alloy be x



Find the weight of brass in the alloy :-


A/q

=> 3/5 = x/3.2
=> 5 × x = 3.2 × 3
=> 5x = 9.6
=> x = 9.6/5 = 1.92



Hence,
The weight of brass in the alloy is 1.92 kg