Marked price = Rs. 2000 1st discount = 15 Rs.15100×2000=Rs.300
∴ The reduced marked price after the 1st discount = Rs. 2000−Rs.300=Rs.1700
2nd discount due to off-season = 5% of Rs.1700 = Rs. 5100×1700=Rs.85
Hence the final reduced price after the 2nd discount
= Rs.1700−Rs.85
= Rs.1615=S.P.
Hence the required S.P. of the coat is Rs.1615