Allen, Barker, and Cooper are cosureties on a $750,000 loan by Durham National Bank to Kingston Manufacturing Co., Inc. The maximum liability of the sureties is as follows: Allen— $750,000,...

Allen, Barker, and Cooper are cosureties on a $750,000 loan by Durham National Bank to Kingston Manufacturing Co., Inc. The maximum liability of the sureties is as follows: Allen— $750,000, Barker—$300,000, and Cooper—$150,000. If Kingston defaults on the entire $750,000 loan, what are the liabilities of Allen, Barker, and Cooper? Explain.