Question

If half of a number is added to itself is $42$, then the number is .

Answer 1

Step 1: Write the equation:

Let, the number be $m$

So, the equation is $\frac{m}{2}+m=42$

Step 2: Solve the equation

$$\begin{gathered} \frac{m}{2}+m=42 \\ \Rightarrow \frac{3m}{2}=42 \\ \Rightarrow 3m=42\times 2 \\ \Rightarrow m=\frac{42\times 2}{3} \\ \Rightarrow m=28 \end{gathered}$$

Therefore, the number is $28$.