Question

500 square tiles of side 25 cm are laid across the hall of a room. What is the area of the hall in sq m?

Answer 1

Given that,

Side of square tile , a = 25cm

Area of each tile = a²

= (25cm)²

= 625 cm²

Now,

Area of hall = no. of tiles × Area of each tile

= 500×625 cm²

= (500×625)/1000 m²

{Since 1cm² = 1/1000 m²}

= 31.25 m²

Hence, Area of hall is 31.25 m²