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Q. $ n_1 , n_2,..., n_p$ are $p$ positive integers, whose sum is an even number, then the number of odd integers among them is odd

IIT JEEIIT JEE 1985Sequences and Series

Solution:

Since, $ n_1 , n_2,..., n_p$ are p positive integers, whose sum is even and we know that , sum of any two odd integers is even.
$\therefore $ Number of odd integers must be even.
Hence, it is a false statement.