Cost of the article
= ₹15000
Amount spent on its repair = ₹500
Total cost price (C.P)
= ₹15000 + ₹500
= ₹15500
Profit% = 20%
We know,
a% of C.P. = Profit
2100×15500 = Profit
Profit = ₹3100
S.P = Profit + C.P
= ₹3100 + ₹15500
∴ S.P=₹18600