Alfredo Company has a job-order cost system. The following debits (credits) appeared in the Work-in-Process account for the month of June.

June 1 .....................................balance $12,000

June 30 .........................direct materials 50,000

During the month of June, direct labor totaled $30,000, and $24,000 of overhead was applied to production. Finished Goods was debited $100,000 during June Afredo Company applies overhead at a predetermined rate of 80% of direct labor cost. Job number 83, the only job still n process at the end of June, has been charged with manufacturing overhead of $3,400.

What was the amount of direct materials charged to Job number 83?