А-65% В-63 С-38 Д-32 Е-56 Ф-43 Г-28 Н-30

Question

А-65%
В-63
С-38
Д-32
Е-56
Ф-43
Г-28
Н-30

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Answer 1

Г
w (Fe)=56×100/120=46,67
46,67 - 100 %
x. - 60%
×=46,67×60/100=28 %