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You can post your approach as comment here.
For ready reference, question is copypasted here:
Below Simplex Table is for a typical
product mix problem with three products and 3 resources. It is an optimal table. Why?
It also has alternate optimal. Find that. 6
marks

p

x_{1}

x_{2}

x_{3}

s_{1}

s_{2}

s_{3}

R.H.S.

P

1

0

0

0

10

15

0

7500

x_{3}

0

0

10

1

8

10

0

305

X_{1}

0

1

25

0

5

8

0

670

s_{3}

0

0

15

0

12

5

1

320

a) Let us assume that one unit of these products or
resources require one unit of storage space each. Which of the two optimum
solutions obtained by you will require lesser storage than other? 6 marks
b) Find one more optimal solution of the same problem. 6 marks
c) What will happen to the objective function value
(increase, decrease or remain unchanged) If we choose s_{1} as entering
variable and do the iteration in the table given in this question.
2 marks