To begin solving this question, let us represent the unknown number by x.
First
We are told that twice a number is increased by one-third the same number
so, we can represent this as
[tex]2\times x+\frac{1}{3}x[/tex][tex]2x+\frac{1}{3}x[/tex]Next, we are told that the result is 28, thus
[tex]2x+\frac{1}{3}x=28[/tex]The final step will be to simplify the expression
[tex]\frac{7x}{3}=28[/tex]Cross multiply to get x
[tex]\begin{gathered} 7x=3\times28 \\ x=\frac{3\times28}{7} \\ x=3\times4 \\ x=12 \end{gathered}[/tex]Hence, the number is 12
