Andy has $240. He had twice as much money as Carl. Carl spent some money and Andy had 6 times as much money as Carl in the end. How much did Carl spend?
Hey! that is a mean title. why will we help you... if you insult us!!!
i will take pity on you and solve this for you anyway :)
Carl had $120, and andy had 240.
we have, 6(120 - x) = 240. this is 120 - x = 40, so x = 80.
basically, carl spent 80 dollars. :)