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From the question, when the product is sold from Agra to Kanpur (intra-state transaction)
For the dealer in Agra:
S. P. in Agra = Rs. 20,000
CGST =9% of Rs. 20,000=9/100×20,000=1800
SGST=9% of Rs. 20,000=9/100×20,000=1800
Now, when the product is sold from Kanpur to Jaipur (inter-state transaction)
For the dealer in Kanpur
Input-tax credit =1800+1800= Rs. 3600
C. P. = Rs. 20,000 and Profit = Rs. 5000
So, the S.P. =20,000+5000= Rs. 25,000
IGST =18% of 25,000= Rs. 4500
Therefore,
(i) Net GST paid by the dealer at Kanpur = Output GST - Input GST =4500−3600= Rs. 900 (ii) The cost of goods/services at Jaipur =S. P. in Agra + IGST =25,000+18% of 25000=25,000+4500= Rs. 29,500