If 16% of 40% of a number is 8, the number is :
A. 200
B. 225
C. 125
D. 320
সঠিক উত্তরঃ
C.
125
Explanation:
Another Explanation (5): ```html
সংখ্যার নির্ণয় 🔢
যদি কোনো সংখ্যার ৪০% এর ১৬%, ৮ হয়, তবে সংখ্যাটি নির্ণয় করতে হবে। 🤔
সমাধানের ধাপ 🪜
- ধরি, সংখ্যাটি 'x'।
- প্রশ্নানুসারে, x এর ৪০% এর ১৬% = ৮
- গাণিতিকভাবে লিখলে: (x * ৪০/১০০) * (১৬/১০০) = ৮
- বা, x * (০.৪) * (০.১৬) = ৮
- বা, x * ০.০৬৪ = ৮
- অতএব, x = ৮ / ০.০৬৪
- সুতরাং, x = ১২৫
ফলাফল 🎉
অতএব, সংখ্যাটি হলো ১২৫। ✅
গণিতের ব্যাখ্যা 🧮
এখানে শতকরা (%) একটি গুরুত্বপূর্ণ ধারণা। শতকরা হলো একটি অনুপাত যা ১০০ এর ভগ্নাংশ হিসাবে প্রকাশ করা হয়। 📊
শতকরার উদাহরণ ➕
- ৫০% = ৫০/১০০ = ০.৫
- ২৫% = ২৫/১০০ = ০.২৫
- ১০% = ১০/১০০ = ০.১
টেবিলে উপস্থাপন 📝
| বর্ণনা | মান |
|---|---|
| শতকরা | ৪০% এবং ১৬% |
| ফলাফল | ৮ |
| নির্ণেয় সংখ্যা | ১২৫ |
আশা করি, এই ব্যাখ্যাটি বোধগম্য হয়েছে। 👍
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