A seller uses faulty weight in place of a 2 kg weight and earns a 25% profit. He claims that he is selling on the cost price in front of the customers but uses a faulty weight. How much error is there in the 2 kg weight to gain 25%?
Answer & explanation
Correct answer: option 3
25% profit = \(\frac{1}{4}\) ⇒ \(\frac{5}{4}\)
5 = 2 kg
Now ⇒ \(\frac{2 kg}{5}\) × 4
= 1.6 kg
differet weight = (2 - 1.6) kg
= 400 g