4.Nanyang Ltd produces a single product.The selling price is $50 per unit and the variable costs are $30 per unit.the annual fixed costs of the nusiness are $4000.the business aims to make $10000 profit during the forthcoming year.How many units must be sold to achieve this target?

a)700 b)200 c)280 d)500

5.Abusiness produces a roduct that generated total revenue of $16000 for the year,the business has variable costs of $5 per unit and total fixed costs of $4,500. the business sold 2,000 units of the product during the year.What is the contribution margin ratio(contribution per unit/selling price/unit)

a)71.9% b)62.5% c)37.5% d)9.4%