Two identical balls charged with the same charge, respectively, 4.5 * 10 ^ -9 degrees and 1.5 * 10 ^ -9.

Two identical balls charged with the same charge, respectively, 4.5 * 10 ^ -9 degrees and 1.5 * 10 ^ -9. Which ball has more electrons. And what charge they will have if they are connected with a metal conductor.

q1 = N1 e
q2 = N2 e
N1 = q1 / e
N2 = q2 / e
e-electron charge
N1 / N2 = q1 / q2 = 3
q = (q1 + q2) / 2 = 3 · 10 -9 C
answer 3 balls have more electrons, the charge will be 3 · 10 -9 C