Question

SUMA A 3 NR.NATURALE ESTE 163.SCAZAND AL TREILA NR.DN SUMA PRIMELOR DOUA NR.OPTINEM 67 .SCAZAND PRIMUL NR.DIN SUMA ULTIMELOR DOUA NR.OBTINEM 37.DETERMINATI CELE TREI NR.

Answer 1

a+b+c=163
(a+b)-c=67
(b+c)-a=37
(a+b)+c+(a+b)-c=163+67
2(a+b)=230=>a+b=230:2=>a+b=115
115+c=163=>c=163-115=>c=48
a+(b+c)+(b+c)-a=163+37=>2(b+c)=200=>b+c=200:2=>b+c=100
a+100=163=>a=163-100=>a=63
63+b=115=>b=115-63=>b=52

verificare:a+b+c=63+52+48=163

Answer 2

a+b=c=67
c+67+c=163
2c+67=163
2c=163-67
c=96:2=48
a+b=48+67=115
b+c=163-37=126
b=126-48
b=78
a=115-78=37
a=37