Given that, S.P.=Rs.6750 and Discount=10%
We know that,
S.P.=M.P.[1−Percentage discount100]
∴ M.P.=Rs.(6750×10090)=Rs.7500
Also given that, if there was no discount, S.P.=Rs.7500 and Profit=50%
We also know that,
C.P.=[100×S.P.100+Profit %]
∴ C.P.=Rs.(7500×100150)=Rs.5000
∴ Actual profit=Rs.6750−Rs.5000=Rs.1750
And actual profit%=17505000×100=35%
Hence, option D is correct.