This one took me 20 mins. Took the same approach as yours. Good puzzle. But if this was during the exam i know i would not be able to solve it due to pressure.
Sir in certain questions multiple cases are formed. In this que you said we would have stopped in case we would have taken 180 in the beginning only but how to be sure that it would have been the only case without checking further ?
sir I've gotten a different solution which satisfies all the conditions .What to do in such a case coz otherwise I shall get all the Tita qs incorrect.