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JEE MATHEMATICS MCQ: PERMUTATIONS
1
Medium
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Analyzing
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Find the number of permutations of numbers such that the sum of five products is divisible by 3
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Correct option: B
80
The correct answer is 80 because the sum of the products is divisible by 3 if is divisible by 3, leading to 8 combinations for and , and then 10 permutations for the remaining numbers.
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