Question

media aritmetica a cinci numere este 11 pe 4 determinati suma lor

Answer 1

$ma = \frac{11}{4} \\ ma = \frac{a + b + c + d + e}{5} \\ \frac{a + b + c + d + e}{5} = \frac{11}{4} \\ a + b + c + d + e = \frac{11 \times 5}{4} = \frac{55}{4} = 13.75$

Answer 2

Fie a, b, c, d, e cele 5 nr.
ma=(a+b+c+d+e)/5=11/4
a+b+c+d+e = (5*11)/4 = 55/4
a+b+c+d+e = 13, 75