Cox, North, and Lee Form a Partnership

Cox, North, and Lee form a partnership. Cox contributes $180,000, North contributes $150,000, and Lee contributes $270,000. Their partnership agreement calls for the income or loss division to be based on the ratio of capital invested
- If the partnership reports income of $150,000 for its first year, what amount of income is credited to Cox's capital account?

A) $36,000.
B) $45,000.
C) $64,286.
D) $60,000.
E) $50,000.