Vinod sold a watch to Arun at a gain of 12% and Arun had to sell it to Manoj at a loss of 5%. If Manoj paid Rs.3990 for it, how much did Vinod pay for the watch?
Arun sold watch to Manoj at 5% loss at Rs.3990
CP
= Rs.4200
So, Cost Price of watch for Arun is Rs.4200
Vinod sold watch to Arun 12% gain
= Rs.3750
So, Vinod paid Rs.3750 for a watch.