Question 27

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Jambmaths question: 

A square has side 30cm. How many of these tiles will a cover a rectangular floor of length 7.2m and width 4.2 m?

Option A: 

336

Option B: 

420

Option C: 

576

Option D: 

720

Jamb Maths Solution: 

$\begin{align}  & \text{Area of the square }={{l}^{2}}=\frac{30}{100}\times \frac{30}{100}{{m}^{2}}=0.09{{m}^{2}} \\ & \text{Area of the rectangular floor }=l\times b=7.2\times 4.2=30.24m \\ & \text{The number of square tile that will be needed } \\ & \text{for the flooring will be }\frac{30.24}{0.09}=336\text{ } \\\end{align}$

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