Select the number that will come next in the following series. 3, 7, 13, 21, 31, ?
निम्नलिखित श्रृंखला में अगली आने वाली संख्या का चयन कीजिए। 3, 7, 13, 21, 31, ?
Answer और ExplanationAnswer and explanation
Answer: (B) 43
1
Differences +4, +6, +8, +10 हैं, जो हर बार 2 बढ़ते हैं।
2
अगला difference +12 है, इसलिए अगला term 31 + 12 = 43 है।
✓
उत्तर (b) 43 है।
1
The differences are +4, +6, +8 and +10, increasing by 2 each time.
2
The next difference is +12, so the next term is 31 + 12 = 43.
✓
The answer is (b) 43.
Source: SSC Selection Post (10th) · 22 Sep 2026 · Shift 3। Solution: Prashant Sir, Kavach।Source: SSC Selection Post (10th) · 22 Sep 2026 · Shift 3. Solution by Prashant Sir, from Kavach.