Question

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Please anwer this....
Brass is alloyed with 30 % of Zink and 70% of copper . If 210 g of copper has been used in an alloy , find the weight of Zink and alloy.

Answer 1

Zinc in alloy = 30 percent

Copper in alloy = 70 percent

As copper = 210g

So, 70 percent = 210 g

So, 1 percent = 210/70 = 3 g

So, 30 percent ( Zinc) = 3 * 30 = 90 g

Total alloy = 210 + 90 = 300 g

Answer : Weight of Zinc = 90g; Weight of total alloy of brass  = 300g

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Answer 2

HOLA MATE UR SOLUTION IS AS FOLLOW...

GIVEN:-

ZINC=30%
COPPER=70%

AS,COPPER USED IN ALLOY=210g

So,

70%=210g

Then,

1%=210/70
=3g

Then 30% of Zinc=3×30
=90g

Total alloy=Weight of copper+Weight of zinc
=210g+90g
=300g

So,

Weight of zinc=90g

'and'

Weight of Alloy=300g
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HOPE IT HELP U MATE...

#BE BRAINLY...
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