Question

the ratio of zinc and copper in an alloy is 7:9. If weight of copper in the alloy is 11.7 kg. Find the weight of zinc in the alloy.​

Answer 1

Answer:

in the ratio let the value be

zinc=7x

copper=9x

weight of copper =11.7 kg

then,

9x(value of copper)=11.7kg

x=11.7/9

x=1.3

weight of zinc will be=7x

=7×1.3

' =9.1kg

Answer 2

Answer:

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