Extra pay by a slow clock
Source: 1971 AHSME Problem 34
April 24, 2014
symmetryAMC
Problem Statement
An ordinary clock in a factory is running slow so that the minute hand passes the hour hand at the usual dial position( o'clock, etc.) but only every minutes. At time and one-half for overtime, the extra pay to which a \textdollar 4.00 per hour worker should be entitled after working a normal hour day by that slow running clock, is(A) \textdollar 2.30\qquad(B) \textdollar 2.60\qquad(C) \textdollar 2.80\qquad(D) \textdollar 3.00\qquad (E) \textdollar 3.30