A dishonest shopkeeper promises to sell his goods at its CP but he uses 960 gm weight instead of 1 kg. Find Profit %.

\(4\frac{1 }{6}\)% Profit \(3\frac{1 }{5}\)% Profit \(5\frac{2 }{7}\)% Profit \(3\frac{2 }{5}\)% Profit

\(4\frac{1 }{6}\)% Profit

Gain = 1000 - 960 = 40 His new cost price = 960    (He uses 960 gm weight out of 1000 gm weight) Gain % = \(\frac{40}{960}\) × 100             = 4\(\frac{1}{6}\)%