MATHEMATICS · Single correct · CBSE · Mathematics · A Square and A Cube · A Square and A Cube
Problem
A school has two examination halls. Hall I is 18 m × 24 m and Hall II is 30 m × 42 m. Both halls must be covered with identical square carpets which leave no uncovered area and no carpet is cut. The same size carpet square must be used in both halls.
(i) What is the side of each carpet square?
(ii) How many such carpet squares are needed in all?
Choose the correct pair.
(a) 3 m,188 squares
(b) 6 m,47 squares
(c) 2 m,423 squares
(d) 6 m,12 squares