Find the next term in the series given below –
6, 13, 27, 55, 111, ?नीचे दी गई श्रृंखला में अगला पद ज्ञात कीजिए:
6, 13, 27, 55, 111, ?

1. A333
2. B166
3. C223
4. D222

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Correct answer: C. 223

Explanation

The differences are 7, 14, 28, 56 — each double the previous one, so the next difference is 112: 111 + 112 = 223. (Equivalently, each term = previous × 2 + 1: 111 × 2 + 1 = 223.)अंतर हैं 7, 14, 28, 56 — प्रत्येक पिछले का दुगुना, अतः अगला अंतर 112 होगा: 111 + 112 = 223। (अथवा, प्रत्येक पद = पिछला पद × 2 + 1: 111 × 2 + 1 = 223।)