Math problem

Question

A rectangular kitchen has an area of 81 square feet. The kitchen is 9 times as many square feet as the pantry. If the rectangular pantry is 3 feet wide, what is the length of the pantry?

Answer 1

3.  The kitchen is 81 sf.  the pantry is 1/9 the size of the kitchen, so it is 9sf.  If the length is 3 ft, the width must be 3 feet.