Question

Aflati trei nr daca media aritmetica a cate doua dintre ele 1,46 20,5 18,3

Answer 1

(a+b)/2=1,46=>a+b=2,92=>a=2,92-b=2,92-41+c
(b+c)/2=20,5=>b+c=41=>b=41-c
(a+c)/2=18,3=>a+c=36,6=>a=36,6-c

2,92-41+c=36,6-c
2c=36,6+41-2,92
2c=74,68
c=37,34
a=(-0,74)
b=3,66