A number exceeds 20% of itself by 40. The number is_____.
A. 50
B. 80
C. 60
D. 70
সঠিক উত্তরঃ
A.
50
Explanation:
Another Explanation (5): ```html
গণিত সমস্যার সমাধান 🔢
একটি সংখ্যা তার ২০% থেকে ৪০ বেশি। সংখ্যাটি নির্ণয় করুন। 🤔
সমাধানের ধাপসমূহ 🪜
- ধাপ ১: সংখ্যাটি x ধরুন।
- ধাপ ২: x এর ২০% = 0.2x
- ধাপ ৩: প্রশ্নানুসারে, x = 0.2x + 40
- ধাপ ৪: সমীকরণ সমাধান:
- x - 0.2x = 40
- 0.8x = 40
- x = 40 / 0.8
- x = 50
ফলাফল 🎉
সুতরাং, সংখ্যাটি হলো ৫০। 🥳
বিশ্লেষণ 📊
| বিষয় | মান |
|---|---|
| সংখ্যাটি | ৫০ |
| সংখ্যার ২০% | ১০ |
| পার্থক্য | ৪০ |
অতএব, প্রাপ্ত উত্তরটি সঠিক। ✅
গুরুত্বপূর্ণ বিষয় 💡
- শতকরা হিসাব 💯
- সমীকরণ গঠন ও সমাধান ➕➖
- গাণিতিক যুক্তি 🧠
আশা করি, এটি বোধগম্য হয়েছে। 👍
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