Question Detail
Complete the series 2,2,5, 13,28,....
- 50
- 51
- 52
- 53
Answer: Option C
Explanation:
\begin{aligned}
\text{Pattern is }\\
+1^2-1, +2^2-1, +3^2-1,+4^2-1 \\
5^2-1 = 28 + 24 \\
= 52
\end{aligned}
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Chand 10 years ago
In series ans 1+1^2-1=2
2+2^2-1=4 but in question series is 2,2,5.... explain the ans in detail -
jhb 11 years ago
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