Four brothers Adam, Bill, Charles and David together contributed certain amount of money and purchased a car. The contribution made by Adam is half that of the total contribution made by the other three brothers, contribution made by Bill is one-fourth of the total contribution made by the other three brothers and the contribution made by Charles is two-third of the total contribution made by the other three brothers. If the total price of the car is $9000, find the contribution made by David.	Choose the correct choice from the following answers:
A) $540 B) $580 C) $600 D) $660 E) $680
Given that A:(B+C+D)= 1:2.   Hence A contributed 1/3rd of the total price.   Given B:(A+C+D)=1:4   Hence B contributed 1/5th of the total price.   Given C:(A+B+D)=2:3   Hence C contributed 2/5th of the total price.   Thus the contribution made by A,B and C= 1/3+1/5+2/5=14/15   So, the remaining 1/15th of the price is contributed by David.   Hence David's contribution= 1/15×9000=$600.   The answer is $600.
<result>C</result>
Four brothers Adam, Bill, Charles and David together contributed certain amount of money and purchased a car. The contribution made by Adam is half that of the total contribution made by the other three brothers, contribution made by Bill is one-fourth of the total contribution made by the other three brothers and the contribution made by Charles is two-third of the total contribution made by the other three brothers. If the total price of the car is $9000, find the contribution made by David.