কোন সংখ্যার ৭৫% = ৩?
8
16
2
4
Correct
Explanation:
Correct Answer is: 4
প্রশ্ন: কোন সংখ্যার ৭৫% = ৩?
সমাধান:
ধরি,
সংখ্যাটি = ক
প্রশ্নমতে,
ক × ৭৫% = ৩
বা, ৭৫ক/১০০ = ৩
বা, ৩ক/৪ = ৩
বা, ৩ক = ১২
বা, ক = ১২/৩
∴ ক = ৪
∴ সংখ্যাটি ৪
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