Permutations, Combinations and Probability-Permutation (IAS Prelims CSAT Paper-II (Aptitude)): Questions 1 - 1 of 1
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Question number: 1
» Permutations, Combinations and Probability » Permutation
Appeared in Year: 2014
A group of 630 children is seated in rows for a group photo session. Each row contains three less children than the row in front of it. Which one of the following number of rows is not possible?