The first of two films lasted 3 minutes less than twice as log as the second. Together the two films lasted 132 minutes. How long was the first film

Accepted Solution

Let x be time for second film and y be the time for first film. According the given conditions, we have: $$y=2x-3$$ $$x+y=132$$ Substitute y=2x-3 in the second equation: $$x+2x-3=132$$ Solving the above equation, we get: $$x=45$$ Therefore: $$y=2(45)-3=90-3=87$$ The first film was 87 minutes.