1. The details of cost and sales of a firm at an output level of 60,000 units are as follows: Sh. Sales 150,000 Raw materials 66,000 Labor 33,000 Semi-variable overheads 30,000 Fixed overheads 11,000 Profit 10,000 Semi-variable overheads include fixed cost of Sh.12,000. If the firm wants to maintain the profits at a present level of Sh.10,000, what selling price should be fixed at the output level of 110,000 units?