Out of a group of three numbers, second is thrice of the first and also twice of the third. If the sum of the three numbers is 55 then find the largest number in the group.
The likes and professions of five friends Rosy, Mary, Lily, Andy and Daisy are given. Consider the following information and answer questions based on it.
1. Rosy likes yellow and is a student. 2. The Librarian likes Green. 3. Mary and Andy like Purple and Blue respectively and neither of them is a Teacher. 4. Lily likes Brown and the Inspector likes Blue. 5. One of the five is a Principal.