Răspuns :
a+b+c=936
b=2a
c=b+6=>b=2a=>c=2a+6
Rezolvare:
a+2a+2a+6=936
5a=936-6
5a=930
a=930:5
a=186
Nr: a=186
b=186•2=372
c=372+6=378
Verificare:186+372+378=558+378=936
b=2a
c=b+6=>b=2a=>c=2a+6
Rezolvare:
a+2a+2a+6=936
5a=936-6
5a=930
a=930:5
a=186
Nr: a=186
b=186•2=372
c=372+6=378
Verificare:186+372+378=558+378=936
1.
a+b+c=936
b=a×2
c=b+6
-----------------------
Care sunt cele trei numere ???
Rezolvare :
a |---| }
}
b |---||---| } 936
+ 6 }
c |---||---|--------| }
5 seg eg. = 936 - 6 = 930
Care e a ??
930 : 5 = 186 ( a )
Care e b ???
186 × 2 = 372 ( b )
Care e c ???
372 + 6 = 378 ( c )
2.
a+b+c=936
b=a×2
c=b+6
-----------------------
Care sunt cele trei numere ???
Rezolvare :
a |---| }
}
b |---||---| } 936
+ 6 }
c |---||---|--------| }
5 seg eg. = 936 - 6 = 930
Care e a ??
930 : 5 = 186 ( a )
Care e b ???
186 × 2 = 372 ( b )
Care e c ???
372 + 6 = 378 ( c )
2.