Exhibit 16 FEDERATED MDT SERIES UNANIMOUS CONSENT OF TRUSTEES The undersigned, being all of the Trustees of Federated MDT Series (the "Trust"), hereby consent, in accordance with the laws of the Commonwealth of Massachusetts and Article V of the Declaration of Trust, and Article V, Section 7 of the Bylaws of the Trust, to the adoption of the following resolution with the same effect as though it had been adopted at the meeting of the Trustees: RESOLVED, that the Board hereby authorizes the Secretary and Assistant Secretaries of the Trust named below to sign on behalf of the Trust the Registration Statement on Form N-14 relating to the proposed reorganization of Federated Technology Fund, a portfolio of Federated Equity Funds, into Federated MDT Small Cap Growth Fund, a portfolio of the Trust. John W. McGonigle, Secretary G. Andrew Bonnewell, Assistant Secretary Andrew P. Cross, Assistant Secretary Leslie K. Ross, Assistant Secretary Todd P. Zerega, Assistant Secretary WITNESS the due execution hereof this 15th day of November, 2007. ------------------------------------------------------------- John F. Donahue Peter E. Madden /S/ John F. Donahue /S/ Peter E. Madden ----------------------------------------------------------------- Thomas G. Bigley Charles F. Mansfield, Jr. /S/ Thomas G. Bigley /S/ Charles F. Mansfield, Jr. ----------------------------------------------------------------- John T. Conroy, Jr. John E. Murray, Jr. /S/ John T. Conroy, Jr. /S/ John E. Murray, Jr. ----------------------------------------------------------------- Nicholas P. Constantakis Thomas M. O'Neill /S/ Nicholas P. Constantakis /S/ Thomas M. O'Neill ----------------------------------------------------------------- John F. Cunningham Marjorie P. Smuts /S/ John F. Cunningham /S/ Marjorie P. Smuts ----------------------------------------------------------------- J. Christopher Donahue John S. Walsh /S/ J. Christopher Donahue /S/ John S. Walsh ----------------------------------------------------------------- Lawrence D. Ellis, M.D. James F. Will /S/ Lawrence D. Ellis, M.D. /S/ James F. Will --