In a factory Ram and Sham produce the same product using the same input of same material and at the same normal wage rate.

Bonus is paid to both of them in the form of normal time wage rate adjusted by the proportion which time saved bears to the standard time for the completion of the product. The time allotted to the product is fifty hours. Ram takes thirty hours and Sham takes forty hours to produce the product. The factory cost of the product for Ram is Rs. 3,100 and for Sham Rs. 3,280. The factory overhead rate is Rs. 12 per man hour.

Calculate

(i) Normal Wage Rate;

(ii) Cost of material used for the product; and

(iii) The input of material if the unit material cost is Rs. 16.