Question

The length of the side of a square tile is $10cm$. How many tiles can be fixed on one side of a wall which is $2.5m$ long and $2m$ high?

• A. $100$
• B. $400$
• C. $5000$
• D. $500$

Answer 1

The correct option is D $500$

Area of the wall $=250\times 200$
$=50,000c{m}^2$
Area of the tile $=10\times 10=100c{m}^2$
Number of tiles required $=\frac{50000}{100}$
$=500$