For a dealer A, the list price of an article is Rs. 9000, which he sells to dealer B at some lower price. Further, dealer B sells the same article to a customer at its list price. If the rate of GST is 18% and dealer B paid a tax, under GST, equal to Rs. 324 to the government, find the amount (inclusive of GST) paid by dealer B.

Let seller

$A$

offer to vendor

$B\text{ }at\text{ }Rs.\text{ }x$

lower cost.

Then, at that point, from the inquiry,

Net Tax paid by seller B is

$\begin{array}{*{35}{l}} \Rightarrow Output\text{ }chargeInput\text{ }Tax\text{ }=\text{ }Rs.\text{ }324 \\ \Rightarrow 18percent\text{ }of\text{ }900018percent\text{ }of\text{ }\left( 9000x \right)\text{ }=\text{ }324 \\ \Rightarrow 16201620\text{ }+\text{ }18percent\text{ }of\text{ }x\text{ }=\text{ }324 \\ \Rightarrow 18percent\text{ }of\text{ }x\text{ }=\text{ }324 \\ \Rightarrow x\text{ }=\text{ }1800 \\ \end{array}$

In this manner, the selling cost of

$B\text{ }=\text{ }9000\text{ }-\text{ }1800\text{ }=\text{ }Rs.\text{ }7200$

Also,

The sum (comprehensive of GST) paid by seller B

$\begin{array}{*{35}{l}} =\text{ }7200\text{ }+\text{ }18percent\text{ }of\text{ }7200 \\ =\text{ }7200\text{ }+\text{ }1296 \\ =\text{ }Rs.\text{ }8496 \\ \end{array}$

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