Ravi sells his goods at a 25% loss on cost price but uses 45% less weight. What is his percentage profit or loss?

Solution / समाधान (Simple):

Let Cost Price (CP) of 1 kg = 100

He sells at 25% loss ⇒ Selling Price (SP) of 1 kg = 75

But he uses 45% less weight ⇒ gives only 55% weight = 0.55 kg

👉 CP of 0.55 kg = $100 \times 0.55 = 55$
👉 SP of 0.55 kg = 75

Profit = $75 - 55 = 20$

Profit % = $\frac{20}{55} \times 100 = \frac{2000}{55} = 36\frac{4}{11}%$

Final Answer / अंतिम उत्तर: Profit, $36\frac{4}{11}$%