Question:
Find the missing term in the series:
12, 23, 36, 51, ?
श्रृंखला में लुप्त पद ज्ञात कीजिए:
12, 23, 36, 51, ?
Options:
- 68
- 70
- 72
- 75
- 68
- 70
- 72
- 75
Correct Answer: a)
Explanation:
Examining the differences:
23 – 12 = 11
36 – 23 = 13
51 – 36 = 15
The differences are consecutive odd numbers: 11, 13, 15, 17.
Next term = 51 + 17 = 68.
क्रमिक अंतर:
23 – 12 = 11
36 – 23 = 13
51 – 36 = 15
विषम संख्याओं का अंतर है: 11, 13, 15, 17.
अगला पद = 51 + 17 = 68।