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- : 40 .. x 35%14=100׃ ..
- : 500 .. x 55% ׃100=275 ..
: 14 ..+275 ..=289 ..
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(C) | 3 (). |
. , 49 ..( 21 ..). , , 40 .. . 40 ..×30%÷100 =12 ..
: 40 ..-12 ..=28 ..
: 49 ..- 28 ..= 21 ..