The marked price of an article is Rs. 6000. A wholesaler sells it to a dealer at 20% discount. The dealer further sells the article to a customer at a discount of 10% on the marked price. If the rate of GST at each stage is 18%, find the amount of tax (under GST) paid by the dealer to the government.
The marked price of an article is Rs. 6000. A wholesaler sells it to a dealer at 20% discount. The dealer further sells the article to a customer at a discount of 10% on the marked price. If the rate of GST at each stage is 18%, find the amount of tax (under GST) paid by the dealer to the government.

We have,

Initial marked price by manufacturer

    \[A\text{ }is~Rs.\text{ }6000\]

Then,

    \[B\]

bought the T.V. at a discount of

    \[20percent.\]

Now, Cost price of

    \[B\text{ }=\text{ }80percent\text{ }of\text{ }6000\text{ }=~Rs.\text{ }4800\]

And, GST paid by

    \[B\]

for purchase

    \[=\text{ }18percent\text{ }of\text{ }4800\text{ }=~Rs.\text{ }864\]

Again, B sells T.V. at discount of

    \[10percent\]

of market Price

So, the Selling price for

    \[B\text{ }=\text{ }6000\text{ }-\text{ }10percent\text{ }of\text{ }6000\text{ }=~Rs.\text{ }5400\]

And, GST charged by B on selling of T.V.

    \[=\text{ }18percent\text{ }of\text{ }5400\]

    \[=~Rs.\text{ }972\]

Thus, GST paid by B to the government

    \[\begin{array}{*{35}{l}} =\text{ }GST\text{ }charged\text{ }on\text{ }selling\text{ }price\text{ }\text{ }GST\text{ }paid\text{ }against\text{ }purchase\text{ }price  \\ =\text{ }972\text{ }-\text{ }864  \\ =~Rs.\text{ }108  \\ \end{array}\]