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What will come in place of (?) in the following number series?1, 3, 7, 13, ?, 311. 122. 153. 214. 255. 30 |
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Answer» Correct Answer - Option 3 : 21 The pattern of the given series : ⇒ 1 + 2 = 3 ⇒ 3 + 4 = 7 ⇒ 7 + 6 = 13 ⇒ 13 + 8 = 21 ⇒ 21 + 10 = 31 ∴ Answer will be 21 |
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