Sales of two products (thousand units)

Question

In which month was Product P's share of combined sales the highest, and what was it?

Solution

1. Combined sales: Jan 80, Feb 105, Mar 90, Apr 125.
2. P's share: Jan 50/80 = 62.5%, Feb 60/105 = 57.14%, Mar 40/90 = 44.44%, Apr 70/125 = 56%.
3. The highest share is in January, at 62.5%.