Find the wrong term in the series given below:
15, 16, 22, 29, 45, 70, ...दिए गए अनुक्रम में गलत पद बताइए:
15, 16, 22, 29, 45, 70, ...

1. A22
2. B70
3. C29
4. D16

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Correct answer: A. 22

Explanation

The differences should be squares 1, 4, 9, 16, 25: 15 → 16 (+1) → 20 (+4) → 29 (+9) → 45 (+16) → 70 (+25). The third term should be 20, so the wrong term is 22.अंतर वर्ग संख्याएँ 1, 4, 9, 16, 25 होने चाहिए: 15 → 16 (+1) → 20 (+4) → 29 (+9) → 45 (+16) → 70 (+25)। तीसरा पद 20 होना चाहिए, अतः गलत पद 22 है।