Question

an alloy of brass contains 65% copper and the rest is zinc .Find the weight of zinc in 200g of brass
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Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Given:-

• $\sf{Mass\: of\: brass = 200g}$
• $\sf{Amount \:of \:copper \:(in\: percentage) = 65\%}$

To find:-

Weight of zinc

Solution:-

$\sf{Amount\:of\:copper = 65\%}$

$\sf{Weight\:of\:copper = 65\% \:of\:200}$

$\sf{Weight\:of\:copper = \dfrac{65}{100}\times 200}$

$\sf{Weight\:of\:Copper = 130\:g}$

Now,

$\sf{Weight\:Of\:Zinc = Total\:weight\:of\:alloy - Weight\:of\:Copper}$

$\sf{Weight\:of\:Zinc = (200 - 130)\:g}$

$\sf{Weight\:of\:Zinc = 70\:g}$

$\sf{\therefore The\: weight\: of \:Zinc\:is\:70\:g}$