এটা পৰীক্ষাত 70% ছাত্ৰ-ছাত্ৰী উত্তীৰ্ণ হয়। যদি 90 ছাত্ৰ-ছাত্ৰী বিফল হয় তেন্তে মুঠ ছাত্ৰ-ছাত্ৰীৰ সংখ্যা বিচাৰক।
A300
B250
C200
D350
Answer & Solution
Correct answer: A. 300
1।
যদি 70% উত্তীৰ্ণ হয়, তেন্তে 30% বিফল হয়।
2।
মুঠ = 90 ৰ 30%, গতিকে মুঠ = 90 * (100/30)।
3।
= 300।
4।
গতিকে 300 ছাত্ৰ-ছাত্ৰীয়ে পৰীক্ষা দিলে।
_উৎস: এছ এছ চি চি জি এল পৰিমাণগত যোগ্যতা (শতাংশ), R.S.
আগৰৱাল শৈলী আৰু মানক অনুশীলন_
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