Dad paves the floor tiles for the living room. If you choose a floor tile with a side length of 40cm, you need 125 pieces. If you use a floor tile with a side length of 50cm, how many pieces do you need? How to solve it

Dad paves the floor tiles for the living room. If you choose a floor tile with a side length of 40cm, you need 125 pieces. If you use a floor tile with a side length of 50cm, how many pieces do you need? How to solve it

First, the total area is 40 × 40 × 125