Question

500 square tiles of side 25 across the room what is the area in square metre

Answer 1

1 tile area=25×25 =625
500 tiles area=500×625=312500sq.m

Answer 2

Hola Friend!!!!

Area of 1 square tile = 25 × 25 cm² = 625 cm²

Area of room = 625 × 500 = 312500 cm²

Area of room in metres =
$= \frac{312500}{10000} = 31.25 {m}^{2}$

Hope it helps