Find the odd one out: 3, 5, 11, 14, 17, 21 MCQ with Answer and Explanation

Find the missing term: 10, 18, 34, 66, ?

A person starts from a point A and travels 3 km eastwards to B and then turns left and travels thrice that distance to reach C. He again turns left and travels five times the distance he covered between A and B and reaches his destination D. How far is he from the starting point?

Statements: All pens are books. Some books are erasers. Conclusions: I. Some pens are erasers. II. Some books are pens. Which conclusion(s) follow(s)?