A trucking company plans to gradually replace their older fleet of trucks with newer more energy efficient ones. Every year it plans to retire 6 trucks and buy 8 newer ones. How many years starting from 2005 will it take to reduce its fleet of 40 old trucks to less than half its fleet?
Choose the correct answer.
A) 8	B) 2	C) 5	D) 6	E) 3
Total fleet--40   End of year 2005 -- (retires 6 and buys 8) total fleet--42(34 old 8 new).   End of year 2006 -- (retires 6 and buys 8) total fleet--44(28 old 16 new).   End of year 2007 -- (retires 6 and buys 8) total fleet--46(22 old 24 new).   Answer is 3--after 3 years the company has a total of 56 taxis (20 old 36 new), the old taxis are already less than 50% of its fleet.
<result>E</result>
A trucking company plans to gradually replace their older fleet of trucks with newer more energy efficient ones. Every year it plans to retire 6 trucks and buy 8 newer ones. How many years starting from 2005 will it take to reduce its fleet of 40 old trucks to less than half its fleet?