Răspuns :
c - a = 36
c : a = 5
c = 5a
5a - a = 36
a = 36 : 4
a = 9 elevi alearga
c = 5 * 9
c = 45 elevi dar coarda
c : a = 5
c = 5a
5a - a = 36
a = 36 : 4
a = 9 elevi alearga
c = 5 * 9
c = 45 elevi dar coarda
l___l___l___l___l___l nr.elevi cre sar coarda
l___l nr. elevi care alearga
5-1=4 (parti egale care reprezinta diferenta )
36:4=9 (elevi cale alearga)
9×5=45 (elevi care sar coarda)
Verificare: 45-9=36
l___l nr. elevi care alearga
5-1=4 (parti egale care reprezinta diferenta )
36:4=9 (elevi cale alearga)
9×5=45 (elevi care sar coarda)
Verificare: 45-9=36