UPSC Civil Services 2019 Prelims General Studies Paper II

Number of non-Indian participants = 100 – 70
= 30.
1. Number of vegetarian = 60.
Number of Indian that are vegetarian ≥ (60 – 30)
≥ 30
2. Number of non-vegetarian = 100 – 60.
= 40.
Maximum Number of non-Indian that are non-vegetarian
= 40 – 30 = 10
Hence, at least 10 Indian are non-vegetarian.