Răspuns :
fie x=primul nr.
x+23=al doilea nr.
x+23+16=al treilea nr
x+x+23+x+23+16=245
3x+62=245
3x=245-62
3x=183
x=183:3
x=61
raspuns:61,84,100
verificare:61+84+100=145+100=245
x+23=al doilea nr.
x+23+16=al treilea nr
x+x+23+x+23+16=245
3x+62=245
3x=245-62
3x=183
x=183:3
x=61
raspuns:61,84,100
verificare:61+84+100=145+100=245