Find the length of the side of a square. A. Total cost of flooring the square is Rs.1000 at the rate of Rs.40 per square metre. B. A rectangle whose perimeter is 20 m is equal to the perimeter of the square. C. A square of area equal to 50 sqm can be made on the diagonal of the given square.

• A. Any of them
• B. Any two of them
• C. Either B or C only
• D. Either A or B only