Bilal's room has a floor of 8m by 4m. He decides to tile the floor with tiles of 25cm x 20 cm. How many tiles will he need?
Q1. Bilal's room has a floor of 8m by 4m. He decides to tile the floor with tiles of 25cm x 20 cm. How many tiles will he need?
Answer: 640 tiles
Explanation: Floor area = 800 cm × 400 cm = 320,000 cm²; tile area = 25 × 20 = 500 cm²; number of tiles = 320,000 ÷ 500 = 640.