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1. 1 + 2 + 3 + .................. + 100 = ?
- A. 5000
- B. 5000
- C. 5000
- D. 5000
Answer: Option D
Explanation:
এখানে, মোট পদ n = 100
∴ সমষ্টি S = n(n + 1)/2
= 100(100 + 1)/2
= (100×101)/2
= 5050
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1. 1 + 2 + 3 + .................. + 100 = ?
Answer: Option D
Explanation:
এখানে, মোট পদ n = 100
∴ সমষ্টি S = n(n + 1)/2
= 100(100 + 1)/2
= (100×101)/2
= 5050
Post your comments here: