A) Necessarily zero
B) Always odd
C) Always even
D) None of these
Correct Answer: C
Solution :
Given set of numbers is {1, 2,....11} in which 5 are even six are odd, which demands that in the given product it is not possible to arrange to subtract only even number from odd numbers. There must be at least one factor involving subtraction of an odd number form another odd number. So at least one of the factors is even. Hence product is always even.You need to login to perform this action.
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