Question

A man was tiling the ground, he wanted a perfect square. He had $2916$ tiles. How many tiles should he put to make equal rows and columns?

• A. $42$
• B. $52$
• C. $56$
• D. $54$

Answer 1

The correct option is D $54$

To need a perfect square, find the square root of $2916$.

$2916=\underset{–}{2\times 2}\times \underset{–}{3\times 3}\times \underset{–}{3\times 3}\times \underset{–}{3\times 3}=54$
The man has to make $54$ columns with $54$ rows to get a perfect square of $54$.