alleryএকটি পরীক্ষায় 70% শিক্ষার্থী পাস করেছে। যদি 90 শিক্ষার্থীরা ব্যর্থ হয়, তাহলে মোট শিক্ষার্থীর সংখ্যা নির্ণয় করুন।
A300
B250
C200
D350
Answer & Solution
Correct answer: A. 300
1।
যদি 70% পাস হয়, 30% ব্যর্থ হয়।
2।
30% মোট = 90, তাই মোট = 90 * (100/30)।
3।
= 300।
4।
তাই 300 শিক্ষার্থীরা পরীক্ষা দিয়েছে।
_সূত্র: SSC CGL পরিমাণগত যোগ্যতা (শতাংশ), R.S.
আগরওয়াল শৈলী এবং আদর্শ অনুশীলন_
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