A shopkeeper promises to sell his goods at x% loss but he uses 20% less weight and gain 20%. Find x.
Answer & explanation
Correct answer: option 4
Let actual weight = 1000 gm
& CP of 1000 gm is Rs.1000
CP of 800 gm = Rs.800
20% = \(\frac{1}{5}\)
⇒ CP = 5P, SP = 6P
So, CP = 800, then SP = 960
Now,
Actual CP = 1000, SP = 960
Loss = 40
Loss % = \(\frac{40}{1000}\) × 100 = 4% = x%
Hence, x = 4