Question

The ratio between copper and zinc in an alloy is 5:7. If the weight of the zinc is 15.4 kg, find the weight of copper​

Answer 1

Answer:

this is the solution for your question

Answer 2

Answer:

1. By making an expression of your question,

$\frac{5}{7} = \frac{x}{15.4}$

2. By cross multiplication,

$\frac{5 \times 15.4}{7} = x$

3. After Solving

$5 \times 2.2 = x$

Therefore, the answer

$11 = x$

11 kg of copper is used.