Question

An alloy of zinc and copper weighs 75 kg. if in the alloy the ratio of zinc and copper is 6:9. find the weight of zinc in it. ​

Answer 1

Answer:

Step-by-step explanation:

Given,

Weight of zinc in the alloy =9.8kg

The ratio of copper and zinc in an alloy =9:7.

Let,

Weight of copper =9x

Weight of zinc =7x

                 9.8=7x

                    x=1.4kg

∴ Weight of copper in the alloy =9x

                                                     =9(1.4)

                                                     =12.6kg

Answer 2

Answer:

The answer to the given question is The weight of the zinc in the alloy is 30 kg.

Step-by-step explanation:

Given :

An alloy of zinc and copper is in the ratio of 6:9.

The weight of the alloy is given as 75 kg.

To find.

The weight of the Zinc is to be found.

Solution :

The ratio between and copper is 6:9.

The ratio is expressed as 6x:9x

The weight of the alloy is given as 75 kg.

$6x + 9x = 75$

we have to find the value of x

$15x = 75 \\ x = \frac{75}{15} \\ x = 5$

The value of x is found to be 5.

By using the value of x we can find the weight of zinc and copper.

The weight of zinc is founded as 6x=6(5)=30.

The weight of copper is founded as 9x= 9(5)=45.

Therefore, the final answer to the given question is 30 kg.

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