Question

suma a 5 numere pare consecutive este 120.afla numerele.

Answer 1

a+a+1+a+2+a+3+a+4=120
5a+10=120
5a=120-10
a=110:5
a=22
a+1=22+1=23
a+2=22+2=24
a+3=22+3=25
a+4=22+4=26
nr =22;23;24;25;26

Answer 2

a |---|
b |---|+2|
c |---|+2|+2|
d |---|+2|+2|+2|
e |---|+2|+2|+2|+2|         } 120.
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120 - 20 = 100  ( 5 parti egale cu a)
100 : 5 = 20 (a)
20 +2 = 22 (b)
20 +2+2 = 24 (c)
20 +2+2+2 = 26 (d)
20 +2+2+2+2 = 28 (e)
Proba : 20 +22+24+26+28 = 120.