Răspuns :
a+b+c supra 3 =14 =>a+b+c =14 *3 =>a+b+c=42
a+b+c+d supra 4 =42 +22 supra 4 =64/4 =16
ma=16
a+b+c+d supra 4 =42 +22 supra 4 =64/4 =16
ma=16
( a + b + c) / 3 =14 a +b +c = 3 · 14
a + b +c = 42
d = 22
( a + b + c + d) / 4 = ( 42 + 22 ) / 4 = 64 / 4 = 16
a + b +c = 42
d = 22
( a + b + c + d) / 4 = ( 42 + 22 ) / 4 = 64 / 4 = 16