Răspunsuri

2014-02-16T18:33:39+02:00
A)  15%*x=225   ----> x=225*100/15= 1500
b)  40%*x=640  ---> x= 640*100/40 = 1600
c) 75%*x=1872 --->  se efectueaza asemanator!!!!!!
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