Singer and McMann Are Partners in a Business

Singer and McMann are partners in a business. Singer's original capital was $40,000 and McMann's was $60,000. They agree to salaries of $12,000 and $18,000 for Singer and McMann respectively and 10% interest on original capital. If they agree to share remaining profits and losses on a 3:2 ratio, what will McMann's share of the income be if the income for the year was $30,000?

A) $20,000
B) $18,000
C) $18,600
D) $17,400