Answer:
Explanation:
The length has been reduced to 6 inches from 18 inches.
That means the length has been reduced to 6/18 = 1/3 of its original size.
So the width must be reduced to 1/3 * 10 which is roughly 3.333 inches.
It doesn't look like any of them are right. i don't know how to make it right from the answers given.