In 1986 the book value of a certain car was 2/3 original price, and in 1988 its book value was 1/2 the original purchase price. By what percent did the book value for this car decrease from 1986 to 1988?	Choose the correct choice from the following choices
A) 16 2/3% B) 25% C) 33 1/3 D) 50% E) 75%
In 1986- 200   In 1988- 150   Decrease of 50 over 200 between 86 and 88   So 25%   ANSWER:25%
<result>B</result>
In 1986 the book value of a certain car was 2/3 original price, and in 1988 its book value was 1/2 the original purchase price. By what percent did the book value for this car decrease from 1986 to 1988?