3 The provisions of Articles 74 to 77 inclusive and 79 shall apply mutatis mutandis to the case where the board of education shall have come into existence in accordance with the provision of the preceding paragraph. However, in Article 74, "within 30 days from the date of their coming into existence in the case of prefectural government and within 20 days from the above date in the case of mayors of the Five Big Cities" shall read "from the To, Do, Fu or prefectural boards of education or the heads of cities, towns and villages, within 20 days from the date of their coming into existence" ;in Article 75, "the prefectural governors or the Five Big Cities'mayors" shall read "the To, Do, Fu or prefectural boards of education and the heads of cities, towns and villages" ;in Article 77, paragraph 1 "chiefs of educational departments or sections and their staffs of prefectures and the Five Big Cities...... on November 1, 1948" shall read "chiefs of educational department or sections and theirs staffs of cities, towns and villages concerned...... on the day when the board of educational shall have come into existence in accordance with the provision of paragraph 2 of Article 88" ;in paragraph 2 of the same Article, "1949" shall read "of the year when the board of education shall have come into existence in accordance with the provision of paragraph 2 of Article 88" ;and in Article 79, "prefectures and the Five Big Cities" shall read "cities town and villages concerned" .