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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