Answer: 190 days
Explanation: under the substantial presence test. The formula is as follows
All the days currently present in 2019 + (1/3) multiply by the days Philippe was present in 2018 + (1/6) multiply by the days Philippe was present in 2017
This gives
110+ (1/3) x 180 + (1/6) x 120
= 110 + 60 + 20 = 190 days.
Since 190 days is greater than 180 days stipulated by law, therefore Philippe is considered as alien .