How many questions are actually on the 70-270 Exam

Congradulations to those who have passed.
I am starting my study for the same exam
can you give me some adviced and materials to use
and how many questions are actuallly on the 70-270 core exam
I've heard 50 is this correct?
I am starting my study for the same exam
can you give me some adviced and materials to use
and how many questions are actuallly on the 70-270 core exam
I've heard 50 is this correct?

Comments
a couple questions on SP2 and on on bluetooth.
GL on your studies buddy
N
I think that 50 are scored and 8 are thrown in at random.