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বাংলা
Select the missing numbers from the given responses.
2, 2, 5, 13, 28, ?
নিচের ধারাটি থেকে অনুপস্থিত সংখ্যাটি নির্বাচন করুন।
2, 2, 5, 13, 28, ?
Practice MCQ for SSC, UPSC, RRB Exams
A. 50
A. 50
B. 51
B. 51
C. 52
C. 52
D. 49
D. 49
Correct Answer: C
সঠিক উত্তর: C
Explanation
ব্যাখ্যা
Differences:
2 → 2 =
0
2 → 5 =
3
5 → 13 =
8
13 → 28 =
15
The differences form a pattern:
0, 3, 8, 15
These numbers increase by
+3, +5, +7
.
The next increase will be
+9
.
So, the next difference =
15 + 9 = 24
.
Therefore, the missing number =
28 + 24 = 52
.
পার্থক্যগুলো:
2 → 2 =
0
2 → 5 =
3
5 → 13 =
8
13 → 28 =
15
পার্থক্যগুলোর ধারা হলো:
0, 3, 8, 15
এগুলো ক্রমান্বয়ে
3, 5, 7
করে বাড়ছে।
পরবর্তী বৃদ্ধি হবে
9
।
অতএব, পরবর্তী পার্থক্য =
15 + 9 = 24
।
সুতরাং অনুপস্থিত সংখ্যাটি হলো:
28 + 24 = 52
।
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