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MODERN PUBLICATION-PERMUTATIONS AND COMBINATIONS -Multiple Choice Questions - LEVEL - II
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- Number of odd proper divisors of 3^(p).6^(m).21^(n) is :
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- Sum of divisors of 2^(5).3^(7).5^(3).7^(2) is :
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- There are four balls of different colours and four boxes of colours sa...
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- Number of non - negative integral solutions of a+b+c+d=n,n in N, is :
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