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1. যদি y - 7 = 12 হয়, তবে y + 19 = কত?
- A. 19
- B. 19
- C. 19
- D. 19
Answer: Option C
Explanation:
1 + 2 + ............... + 50
= n(n + 1)/2
= 50(50 + 1)/2
= 1275
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1. যদি y - 7 = 12 হয়, তবে y + 19 = কত?
Answer: Option C
Explanation:
1 + 2 + ............... + 50
= n(n + 1)/2
= 50(50 + 1)/2
= 1275
Post your comments here: