Question

The ratio ofthe copper and zinc in an alloy is4is to 7 if the totalweight is12.100kg find the weoght of each

Answer 1

4x+7x = 12.100
11x = 12.100
x = 12.100 ÷ 11
your answer will come suppose 7
the multiply 4 × 7 = 28
7 × 7 = 49

Answer 2

4x+7x= 12.100 kg= 12100g
11x= 12100g
x= 12100÷11= 1100 gram
so 4x I.e. copper = 4*1100=4400g or 4.4kg
whereas 7x I.e. alloy= 7*1100=7700g or 7.7kg
so we get that weight of copper is 4.4 kg and weight of alloy is 7.7 kg


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