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x+10%=y; y+20%=z; z+25%=19800; чему равен x?

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19800 = 125%

z=100% = 19800/125 * 100 = 15840

15840 = 120%

y = 100% = 15840/120 * 100 = 13200

13200 = 110%

x=100% = 13200/110 * 100 = 12000

x= 12000

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Учеба и наука

x 10%=y; y 20%=z; z... - вопрос №787563

xSQL