Pendant Publishing is in the book business. The company applies process costing (weighted-average method). At the beginning of April there are 30,000 pcs. in progress in the bookbinding. They have been processed 20%. In April, 60,000 came. additionally into the bookbinding from printing. 70,000 pcs. were completed in April and were sent to the packing department. How many pieces are still being processed in the bookbinding at the end of April?