Mud is being pumped through a drill string composed of only drill pipes $+$ bit. The well trajectory is shown in the figure:

Use the following data to answer QUESTIONS $1$ and $2$:

QUESTION $1$

Compute the number of pump strokes $($round up to nearest stroke$)$ to circulate:

a$)$ bottoms up $($from just outside of bit back to surface thru annulus$)$

b$)$ fill the hole to replace the drill string volume if the entire drill string is removed from the wellbore $($assume open ended$)$

c$)$ Full circulation from standpipe back to surface.

QUESTION $2$

What is the overbalance $($in psi$)$ at the bottom of the well?

CAN YOU PLEASE SOLVE ALL THE QUESTIONS STEP BY STEP?