Question

media aritmetica a sase nr e 70 , aflati media aritmetica la trei nr . stiind ca media aritmetica celorlalte trei e 60

Answer 1

Răspuns:

(x+y+z+n+v+a):6=70. x+y+z+n+v+a=70*6=420

(x+y+z):3=60. x+y+z 60*3=180

n+v+a=420-180=240