math
posted by sandy .
Pranav reduced the size of a rectangle to a width of 7 inches. What is the new height if it was originally 49 inches wide and 28 inches tall?

No way to tell.
Did he keep the area the same?
Did he reduce both dimensions by the same amount?
Did he reduce both dimensions by the same proportion?
He might not have changed the height at all.
More info needed here.