Question

The ratio of copper and zinc in an alloy is $5:3$. If the weight of the alloy is $488$gm, find the weight of zinc in the alloy.

Answer 1

Finding the weight of zinc in the alloy:

The given ratio is =$5:3$

Consider the ratio as $x$.

So, the weight of copper $=5x$

Weight of zinc $=3x$

Then the weight of alloy is $=5x+3x=8x$

According to the question ,

$$\begin{gathered} \Rightarrow 8x=488 \\ \Rightarrow x=\frac{488}{8} \\ =61 \end{gathered}$$

Hence, the weight of zinc = $3x=3\left(61\right)=183$gm