Help with circuit analysis of transistors!!?

Question

http://i143.photobucket.com/albums/r147/rAOL87/circuit1.jpg

Above is a given circuit in which I need to solve for Vb, I1 and I2. I am given Vcc, R6, R7, and Beta. If anyone knows the steps to solving this problem, could you please post them?

thanks in advance!

Answer 1

Your circuit is connected wrong. The third transistor's base is grounded, so I2 = 0

Also, R5 does not exist, presumably it's supposed to be the base resistor for Q3?

What about the other resistor values?

Q1, the bottom transistor of the stack is biased on by R7, therefore, Vceq1 ~ 0, so Q3 would still be biased off and I2 would still be 0.