1) The university library purchased books on macroeconomics, microeconomics and statistics. She devoted €500 to the purchase of macroeconomics books (unit price €50), €1000 to the purchase of microeconomics books (unit price €50) and €500 to the purchase of statistics works (unit price €25). The average price of a work is:
(A) €40 (b) €38 (c) €35 (d) €41.6