Three-twentieths of the members of a social club are retirees who are also bridge players, eight-twentieths of the members are retirees, and one-half of the members are bridge players. If 120 of the members are neither retirees nor bridge players, what is the total number of members in the social club?  Pick
A) 240	B) 160	C) 360	D) 400	E) 480
{Total} = {Retirees} + {160ridge players} - {160oth} + {Neither}   x = 8/20*x + x/2 - 3/20*x + 120   20x = 8x + 10x - 3x + 120*20 (multiply by 20)   15x = 120*20   x = 160   Answer: 160
<result>B</result>
Three-twentieths of the members of a social club are retirees who are also bridge players, eight-twentieths of the members are retirees, and one-half of the members are bridge players. If 120 of the members are neither retirees nor bridge players, what is the total number of members in the social club?