State true/false:

Rishi bought a magazine for Rs. 784 which included a GST of 12%. The price of the magazine before GST was included was Rs 700.

The given statement is true.

Let the price of the magazine before GST was added be 'x'.

GST amount = Price before GST x 12%

Then, 

$\mathrm{x}+(\mathrm{x}\times 12\%)=784$

$\mathrm{x}+\left(\frac{\mathrm{x}\times 12}{100}\right)=784$

$\mathrm{x}+(0.12\mathrm{x})=784$

$1.12\mathrm{x}=784$

$\mathrm{x}=\frac{784}{1.12}=700$

Therefore, the price of the magazine before GST included was Rs 700.