ANSWER
[tex]\begin{equation*} Rs180 \end{equation*}[/tex]EXPLANATION
To find the cost of 8kg of wheat, we have to apply proportions.
Let the cost of 8 kg of wheat be x.
We can write that:
[tex]\begin{gathered} 10kg=Rs225 \\ 8kg=x \end{gathered}[/tex]To solve for x, cross-multiply:
[tex]\begin{gathered} x*10=8*225 \\ x=\frac{8*225}{10} \\ x=Rs180 \end{gathered}[/tex]That is the cost of 8 kg of wheat.
