Manish sold goods to Kumar for Rs. 10,000 plus CGST and SGST at 9% each. Kumar paid Rs. 1,800 in cash and accepted a bill for Rs. 10,000 payable 3 months after the date. What is the total amount due after 3 months?
a) Rs. 10,000
b) Rs. 10,900
c) Rs. 11,700
d) Rs. 11,800
