Hi guys. I wanted to ask if we could use the weighted average trick to solve this question?

Keeping the avg of managers on the left, the total avg in the middle and avg of directors on the right:

Avg(m) — 5000 — Avg (Total) ---- 15000 ---- Avg(D)

We can say M/D = 15000/5000. Which means M = 3*D. And now we can calculate the percentage of D by D/(D + M) *100 which is 25%.

Is this approach correct?