an alloy contains only zinc and copper and they are in the ratio of 7 is to 9 if the weight of the alloy is 8 kg then find the weight of copper in the alloy
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Step-by-step explanation
As we know
ratio of zinc and copper in the alloy =7:9
and the weight of alloy is =8kg
so,the weight of copper in the alloy is as follow
7+9=16
we have to find copper weight so we will take copper ratio
9/16=8=9/2
=4.5kg
and the weight of zinc is 7/16=8=7/2
3.5kg
4.5+3.5=8kg
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