Răspuns :
a+(a+1)+(a+2)+(a+3)=618
4a+6=618
4a=618-6=612
a=612:4
a=153
numerele sunt: 153;154;155;156
4a+6=618
4a=618-6=612
a=612:4
a=153
numerele sunt: 153;154;155;156
a,b,c,d-nr. căutate
a,b,c,d-nr.nat. consecutive
a+b+c+d=618
b=a+1
c=a+2
d=a+3
_____________
a,b,c,d=?
_____________
a+a+1+a+2+a+3=618
4a=612
a=612:4
a=153
b=153+1
b=154
c=153+2
c=155
d=153+3
d=156
a,b,c,d-nr.nat. consecutive
a+b+c+d=618
b=a+1
c=a+2
d=a+3
_____________
a,b,c,d=?
_____________
a+a+1+a+2+a+3=618
4a=612
a=612:4
a=153
b=153+1
b=154
c=153+2
c=155
d=153+3
d=156