iamcste wrote:lets say if you do not understand the Argument in an assumption qtn when you read for the first time while the second read even more obfuscates and whole thing goes into loop of confusion, wasting time with no effective output..How do you face such a situation and get out of it with minimal loss?

well in my opinion it differs from case to case
one way u can try is that first find out the conclusion.
brk down the rest pieces of information
connect the links in each pieces check some common terms
there will be new term in conclusion and to link it withe the piece of information u need some missing link
which is nothing but assumption

cant help more than this
if u can post the question which troubled u then there can be some help

thephoenix gives some advice above, but mine refers to the case in which you just can't make any sense of the argument. If you find yourself in this sort of a situation, the best thing to do is to eliminate every option that contains strong words and then simply make a pick (hoping for good luck).

By strong words I understand stuff like "always", "never", "every time"... Things that express absolute certainty about something aren't usually welcome in the GMAT. Hopefully though, you won't have to do this!