Question

Suna a 4 numere consecutive este 486. Care sunt numerele?

Answer 1

x+x+1+x+2+x+3=486
4x+6=486 -6
4x=480 :4
x=120 primul nr
x+1=120+1=121 al 2 nr
x+2=120+2=122 al 3 nr
x+3=120+3=123 al 4 nr
deci 120+121+122+124=486

Answer 2

a=|----|;b=|----|+1|;c=|----|+2|;d=|----|+3| in total 486. 486-(1+2+3)=480 (am egalat segmentele). 480:4=120 (un segment si numarul a). 120+1=121 (numarul b). 120+2=122 (numarul c). 120+3=123 (numarul d). Verificare:120+121+122+123=486.