La o librarie sunt 246 de mingi rosii si de 3ori mai multe mingi albastre . Se vand 129 de mingi rosii si 426 de mingi albastre. Cate mingi mai raman in magazin ? Rezolva problema in 2 moduri .
Ma ajutati va rog la aceasta problema ?

2

Răspunsuri

2014-10-30T14:50:39+02:00
1.
r=246
a=3*246=738
Se vand: r=246-129=117 mingi rosii ramin
a=738-426=312 mingi albastre raman
Deci , in total raman: 117+312=429 mingi
2.
246+(246*3)=246+738=984 mingi erau in magazin
129+426=555 mingi se vand
984-555=429 mingi raman


2014-10-30T14:55:58+02:00
246 ori 3= 738 mingi albastre  ; 246- 129=117 mingi rosii  raman  ; 738- 426=312 mingi albastre raman ; 117+ 312=429 mingi raman in magazin.