The average mark obtain by 10 students was 6 and the average mark obtained by 6 students was 17. What was the average mark obtained by all 16 students ___.
A. 10
B. 7.5
C. 8
D. 8.5
সঠিক উত্তরঃ
A.
10
Explanation:
Another Explanation (5): ```html
১৬ জন শিক্ষার্থীর গড় নম্বর নির্ণয় 🧑🎓
এখানে, ১০ জন শিক্ষার্থীর গড় নম্বর ৬ এবং ৬ জন শিক্ষার্থীর গড় নম্বর ১৭। মোট ১৬ জন শিক্ষার্থীর গড় নম্বর বের করতে হবে। 🤔
প্রদত্ত তথ্যসমূহ 📊
- ১০ জন শিক্ষার্থীর গড় নম্বর: ৬
- ৬ জন শিক্ষার্থীর গড় নম্বর: ১৭
গড় নম্বর নির্ণয়ের পদ্ধতি 📝
- ধাপ ১: প্রথমে, ১০ জন শিক্ষার্থীর মোট নম্বর নির্ণয় করি।
মোট নম্বর = শিক্ষার্থীর সংখ্যা × গড় নম্বর = ১০ × ৬ = ৬০ - ধাপ ২: এরপর, ৬ জন শিক্ষার্থীর মোট নম্বর নির্ণয় করি।
মোট নম্বর = শিক্ষার্থীর সংখ্যা × গড় নম্বর = ৬ × ১৭ = ১০২ - ধাপ ৩: এখন, ১৬ জন শিক্ষার্থীর মোট নম্বর নির্ণয় করি।
মোট নম্বর = ৬০ + ১০২ = ১৬২ - ধাপ ৪: সবশেষে, ১৬ জন শিক্ষার্থীর গড় নম্বর নির্ণয় করি।
গড় নম্বর = মোট নম্বর / শিক্ষার্থীর সংখ্যা = ১৬২ / ১৬ = ১০.১২৫
ফলাফল 💯
অতএব, ১৬ জন শিক্ষার্থীর গড় নম্বর ১০.১২৫। 🎉
ফলাফলের টেবিল
| বিষয় | মান |
|---|---|
| মোট শিক্ষার্থী | ১৬ জন |
| মোট নম্বর | ১৬২ |
| গড় নম্বর | ১০.১২৫ |
আশা করি, এই ব্যাখ্যাটি বোধগম্য হয়েছে। 👍
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