Hi saraafifiahmed,
The Peterson products have something of a dubious reputation. BB commented on them awhile back:
--------------------------------
Yes, it is a terrible book and/or tests.
the main reason is that Peterson does not have its own Tutoring arm and only publishes books, thus its ability to develop new techniques or invest a ton of $$ into "R&D" or improvement of questions is much more limited than than that of Kaplan, Princeton Review, and
Manhattan GMAT.
--------------------------------
There are plenty of sources for reputable CATs. Which ones have you used so far?
GMAT assassins aren't born, they're made,
Rich