If the cost price of 20 articles equals to the selling price of 25 articles, what is the % of profit or loss made by the merchant?
সঠিক উত্তর: Option C
suppose,
cost price of each article is 1 tk so, cost price of 20 article is =20 tk so, " " " 25 " " =25 tk but, selling price of 25 article is 20 tk loss =25-20 tk= 5 tk loss percentage = 5 X 100 /25 =20 tk