Select the number that will come next in the following series. 100, 90, 81, 73, ?
निम्नलिखित श्रृंखला में अगली आने वाली संख्या का चयन कीजिए। 100, 90, 81, 73, ?
Answer और ExplanationAnswer and explanation
Answer: (A) 66
1
Differences -10, -9, -8 हैं, यानी हर बार size में 1 कम होते जाते हैं।
2
अगला difference -7 होगा, इसलिए अगला term 73 - 7 = 66 है।
✓
उत्तर (a) 66 है।
1
The differences are -10, -9 and -8, so each difference is one less in size than the one before.
2
The next difference is -7, so the next term is 73 - 7 = 66.
✓
The answer is (a) 66.
Source: SSC Selection Post (10th) · 23 Sep 2026 · Shift 3। Solution: Prashant Sir, Kavach।Source: SSC Selection Post (10th) · 23 Sep 2026 · Shift 3. Solution by Prashant Sir, from Kavach.