alleryএকটি দোকান 20% ছাড় দেয়। 250 ধার্যমূল্যের একটি ব্যাগের বিক্রয়মূল্য হলো:
A180
B210
C230
D200
Answer & Solution
Correct answer: D. 200
1. 20 শতাংশ ছাড়ের অর্থ হলো গ্রাহক ধার্যমূল্যের 80 শতাংশ পরিশোধ করেন।
2. এখানে ধার্যমূল্য হলো 250।
3. সুতরাং বিক্রয়মূল্য হলো 80 / 100 x 250।
4. যা হলো 200।
5. অন্যভাবে যাচাই করলে, ছাড় হলো 20 / 100 x 250 = 50, এবং 250 - 50 = 200।
_Source: syllabus Maths, Ch 7 'Comparing Quantities', S7.2 Finding Discounts_
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