The approach for solving this question would be straight forward - we will compute the cost in both the options and compare with each other. whichever comes lesser will be accepted.
Total cost in Option 1 :

W. note 1 - Calculation of total hours : It is given that 50 units are made in 1 hour and total number of units in the year are 104,000. which simply means that total number of hrs taken are - 104,000/50 units per hr = 2,080 hrs.
Thus, direct labour cost above is 15.50x2,080 = $32,240. On same lines, indirect labour has also been calculated.
so the total cost in option 1 is 1,061,755.
Option 2 : All the cost will be same except the operators cost. The 2 operators will be eliminated and we can save the cost of 40,000+45,000 = 85,000 per year. Also, we will have to make an extra capital investment of 117,000, the useful life of this asset is not given in the question.

So the net cost after eliminating the cost of 2 operators is 976,755. Now we have also made an extra investment of 117,000. The useful life is not given in the question but as it is a capital investment (asset) the useful life must be more than one year say 2 years (assumption).
There, the per year cost of investment written off will be 117,000/2 = 58,500.
Thus, the net cost would be 976,755+58,500 = 1,035,255. which is lower than cost in option 1 thus it is acceptable.
shout if there is any doubt.
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