If an 8 x 10 inch picture is made smaller using a ratio of similarity of 2:1, what is the new width of the picture? my answer 5 using a formula i just learned yes? or not

Question

If an 8 x 10 inch picture is made smaller using a ratio of similarity of 2:1, what is the new width of the picture? my answer 5 using a formula i just learned  yes? or not

directrix · Answer

On the given picture, [If an 8 x 10 inch picture], if 8 is the width of the original, then the width of the smaller picture is 4.

On the given picture, if 10 is the width, then 5 is the width of the smaller picture. 

So, the answer depends upon which of the dimensions 8 and 10 is the width.

anonymous · Answer

wel on picture frames it always says l x w so i guessed 10 was width and coming to the answer 5

directrix · Answer

That sounds correct to me.