## Question

Download Solution PDF12 টি বইয়ের ক্রয়মূল্য 8 টি বইয়ের বিক্রয়মূল্যের সমান হলে শতকরা লাভ কত হবে?

A. 20%

B. 30%

C. 40%

D. 50%

## Answer (Detailed Solution Below)

**Free Tests**

## Detailed Solution

Download Solution PDF**সংক্ষিপ্ত কৌশল:**

শতকরা লাভ = (12 - 8) / 8 × 100% = 50%

**বিস্তারিত সমাধান:**

ধরা যাক, প্রতিটি বইয়ের ক্রয়মূল্য = x টাকা

প্রতিটি বইয়ের বিক্রয়মূল্য = y টাকা

প্রশ্ন অনুযায়ী,

⇒ 8y = 12x

⇒ y = 12x/8 = 1.5x

∴ শতকরা লাভ = (1.5x - x) / x × 100% = 50%Last updated on Oct 30, 2024

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