Solved UPSC CDS/OTA Question
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Q · LCM and HCFDifficult · 45s
Find the greatest 5-digit number divisible by 12, 15, 20, and 27.
TopicLCM and HCF
Question Typemultiple choice
DifficultyDifficult
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained - no skipped algebra.
LCM = 540; largest 5-digit multiple = 540 × 185 = 99900.
Final Answer: Option B - 99900