Ashifur August 8, 2023 - 18:32
Problem: A trader, while selling an item, was asking for such a price that would enable him to of, a 20% discount and still make a profit of 30% on cost. If the cost of the item was Tk. 50. what was his asking price?

View all: BANGLADESH BANK | ASSISTANT DIRECTOR | WRITTEN QUESTION (MATH) SOLVE | 2008

Correct Answer: TK 81.25

Explanation:

২০% ডিসকাউন্টে পণ্যের মূল্য দাড়ায় (১০০ – ২০) টাকা = ৮০ টাকা

৩০% লাভে বিক্রয়মূল্য (১০০ + ৩০) টাকা = ১৩০ টাকা

১০০ টাকার পণ্যের বিক্রয় মূল্য = ১৩০ টাকা

৫০ টাকার পণ্যের বিক্রয় মূল্য = $\frac{১৩০x৫০}{১০০}$ =৬৫ টাকা

ডিসকাউন্ট মূল্য ৮০ টাকা হলে চাহিদামূল্য = ১০০ টাকা

ডিসকাউন্ট মূল্য ৬৫ টাকা হলে চাহিদামূল্য =$\frac{১৩০x৬৫}{৮০}$= ৮১.২৫ টাকা

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