commercial mathematics question the ratio of zinc and copper in an alloy is 7:9 . If the weight of copper in alloy is 306 gm, find the weight of zinc
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let the weight of zinc be x.
The ratio of zinc and copper is 7:9.
a/q
7/9=x/306
or 9x=306×7
orx=(306×7)÷9
orx=34×7
orx=238
Hence,the weight of zinc is 238gm.
The ratio of zinc and copper is 7:9.
a/q
7/9=x/306
or 9x=306×7
orx=(306×7)÷9
orx=34×7
orx=238
Hence,the weight of zinc is 238gm.
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