A. Rs. 6576.10/-
B. Rs. 6686.10/-
C. Rs. 6756.10/-
D. Rs. 6876.10/-
=> Rebate = 6% of Rs. 6650 = ( 6 / 100 ) x 6650 = Rs. 399/-
=> Sales Tax = 10% of ( 6650 - 399 ) = ( 10 / 100 ) x 6251 = Rs. 625.10/-
=> Final Amount = 6251 + 625.10 = Rs. 6876.10/-