The chord of contact of tangents drawn from a point on the circle x² + y² = a² to the circle x² + y² = b² touches the circle x² + y² = c² such that bm = an cp, where m, n, p ∈ N. Find the value of m + n + p + 10.
If A's salary is 50% more than that of B, then by what percentage is B's salary less than that of A?
23 \( \frac{1}{3} \) %
13 \( \frac{1}{3} \) %
33 \( \frac{1}{3} \) %
30 \( \frac{1}{3} \) %