Obama Company sells its product for $25 per unit. During 2012, it produced 20,000 units and sold 15,000 units (there was no beginning inventory). Costs per unit are: direct materials $5, direct labour $4, and variable overhead $3. Fixed costs are: $300,000 manufacturing overhead, and $50,000 selling and administrative expenses. The per unit manufacturing cost under variable costing is a) $12.
b) $27.
c) $29.50.
d) $32.

The following pertains to smoke, inc.’s investment in debt securities: on december 31, year 3, smoke reclassified a security acquired during the year for $70,000. it had a $50,000 fair value when it was reclassified from trading to available-for-sale. an available-for-sale security costing $75,000, written down to $30,000 in year 2 because of an other-than-temporary impairment of fair value, had a $60,000 fair value on december 31, year 3. what is the net effect of the above items on smoke’s net income for the year ended december 31, year 3?