Comparing Lengths of Yellow and Blue Yarn
A piece of yellow yarn was 230 inches long. After 90 inches had been cut from it, the piece of yellow yarn was twice as long as a blue yarn. At first how much longer was the yellow yarn than the blue yarn?
Answer:
Explanation:
It doesn't make sense to talk about one "price" being twice as long as another! Is it possible that this should be "the piece of yellow yarn was twice as long as a piece of blue yarn?" If so, "after 90 inches has been cut" from a piece 230 inches long, it will be 230-90=140 inches long. Since that is "twice as long a piece of blue yarn", the blue yarn is 140/2=70 inches long. So, initially, the piece of yellow yarn was 230-70=160 inches longer than the piece of blue yarn.
A piece of yellow yarn was 230 inches long. After 90 inches had been cut from it, the piece of yellow yarn was twice as a long a blue yarn. At first how much longer was the yellow yarn than the blue yarn? It doesn't make sense to talk about one "price" being twice as long as another! Is it possible that this should be "the piece of yellow yarn was twice as long as a piece of blue yarn?" If so, "after 90 inches has been cut" from a piece 230 inches long, it will be 230-90=140 inches long. Since that is "twice as long a piece of blue yarn", the blue yarn is 140/2=70 inches long. So, initially, the piece of yellow yarn was 230-70=160 inches longer than the piece of blue yarn.