Question

Ma gandesc la un numar.Daca-i adaug jumatatea  si sfertul lui,obtin 224.La ce numar m-am gandit?

Answer 1

$x+ \frac{1}{2} *x + \frac{1}{4} *x=224 =>$
4x+2x+x=896 => 7x=896 => x=128