Number System
Basic Numeracy & Data Interpretation · PYQ 2026
There are three types of rectangular tiles : 3'×3', 3'×7' and 3'×11'. An area of rectangular shape of dimensions 3'×100' is to be covered using these tiles without breaking them. If x and y are the maximum and minimum numbers of tiles of various sizes, respectively, that can be used to cover the area exactly, then x - y is