Question

Simplify the following: $$\frac{0.3	imes 0.3 + 0.03	imes 0.03 - 0.6	imes 0.03}{0.54}$$

Accepted Answer

B. The numerator is of the form $a^2 + b^2 - 2ab = (a - b)^2$, where $a = 0.3$ and $b = 0.03$. Numerator = $(0.3 - 0.03)^2 = (0.27)^2 = 0.0729$. Value = $\frac{0.0729}{0.54} = 0.135$.

Decimal simplification

Explanation

Practise this under exam conditions