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1. A trader sells goods to a customer at a profit of k% over the cost price, besides it he cheats his customer by giving 880 g only instead of 1 kg. Thus his overall profit percentage is 25%. Find the value of k?
→ k = 100
Thus,
Net % profit = = 10%
Solution:
% Profit = = → k = 100
Thus,
Net % profit = = 10%