Answer is C
MP=Rs.10000, Agent’s CP = $10000*\frac{90}{100}*\frac{80}{100} = Rs.7200$
He spends 10% of his C.P. on transport = $7200*\frac{10}{100} = Rs.720$
Total CP of the agent = Rs.7200+Rs.720 = Rs.7920
In order to gain 10% profit, SP of TV = $7920*\frac{110}{100} = Rs.8712$