Răspuns:
a) 20
b) 12
Explicație pas cu pas:
a) (n+83)/2 = 51,5
n+83 = 103
n = 103-83 = 20.
b) n+83 = 2 x 47,5
n+83 = 95
n = 95 - 83 = 12.
c) 80
d) 76
n+83/2=51,5 n+83=103 n=103-83 n=20
n+83/2=47,5 n+83=95 n=95-83 n=12
n+83/2=81,5 n+83=163 n=163-83 n=80
n+83/2=79,5 n+83=159 n=159-83 n=76
