direct material : 2500/500 * 1000 = 5000 direct labour : 5000/500 * 1000 = 10000 production overhead = 1000*50% + (1000*50% / 500 * 1000 ) = 1500 selling cost = 1250*20% + (1250*80%/500 * 1000) = 2250 cost per unit = 17500 / 500 = 35 so SALE REVENUE for 1000 unit = 35 * 1000 = 35000 LESS all cost : 35000 – 5000 – 10000 – 1500 – 2250 = 16250 i think the answer is B 😀