klrahul wrote:

In one of the questions that I solved, the stem reads as "In right angled triangle ABC ...."

My question is can we safely deduce from the stem that the triangle is right angled at B?

In my school we were taught that in a right angle triangle it is always the middle angle (as per the naming) that is a right triangle. is this information correct?

klrahulI agree, in general math practice we follow naming conventions for proper understanding. Like if given angle ABC =30, we know angle at B is 30, or if triangle ABC ~ triangle DEF, we conclude angle A = angle D and so on. We have to follow such rules while providing detailed solution for questions.

But in GMAT questions, until and unless questions specify a particular angle or give you an figures with angles marked on it, don't go purely on naming conventions.