Question

If $\frac{1}{4}$ is equivalent to $\frac{x}{28}$, then the value of x is

(a) 6
(b) 7
(c) 8
(d) 9

Disclaimer: There is a misprint in the question, $\frac{3}{4}$is written instead of $\frac{1}{4}$.

Answer 1

$$\begin{gathered} \frac{1}{4}=\frac{1\times 7}{4\times 7}=\frac{7}{28} \\ \mathrm{It}\mathrm{is}\mathrm{given}\mathrm{that}\frac{1}{4}\mathrm{is}\mathrm{equivalent}\mathrm{to}\frac{x}{28}. \\ \therefore \frac{7}{28}=\frac{x}{28} \\ \Rightarrow x=7 \end{gathered}$$

Hence, the correct option is (b).