Răspunsuri

2014-05-21T20:45:33+03:00
A+a+1+a+2+a+3+a+4=S

a+a+4=100
2a=100-4
2a=96
a=48
a+1=49
a+2=50
a+3=51
a+4=52
1 5 1
2014-05-21T20:46:25+03:00
A + (a+1) + (a+2) + (a+3) + (a+4) = ?
a + (a+4) = 100
2a = 96
a = 48
a + 1 = 49
a + 2 = 50
a + 3 = 51
a + 4 = 52
1 5 1