please solve part B i will upvote Consider the following IP model:

While solving the given IP using Branch and Bound

method, following.tree was generated:

Note that $x=(x_1,x_2,x_3,y_1,y_2,y_3)$ and note that some

information is missing from the tree.

Q$11)$ The constraint corresponding to branch $G$ on the tree

is:

a$)y_2=1$

b$)y_2=0$

c$)y_3=0$

d$)x_{2}12$

e$)x_{3}0$

Q$13)$ Immediately after solving node $7,$ what can we say

about it:

$($a$)$ IFS only

b$)$ DIS only

c$)$ NFS

d$)$ Alive

e$)$ Both $($a$)$ and $($b$)$ are correct options

Q$12)$ The constraint corresponding to branch D on the tree

is:

a$)x_{2}12$

b$)x_{2}12$

c$)x_{2}11$

$($d$)x_{2}11$

e$)y_2=0$

Q$14)$ Which of the following is true about nodes $8$ and $9?$

$($a$)$ Node $8$ is NFS and node $9$ is IFS

b$)$ Node $8$ is IFS and node $9$ is NFS

c$)$ Both nodes are IFS

d$)$ Both nodes are NFS

e$)$ None of the above options is true

Q$15)$ Which of the following is true for the given tree?

a$)$ The optimal solution is at node $4$

b$)$ The optimal solution is at node $7$

c$)$ The optimal solution is at node $8$

d$)$ The optimal solution is at node $9$

e$)$ The optimal solution cannot be found since some leaf nodes are still alive