Question

# The set of odd integers is closed under

A
B
subtraction
C
multiplication
D
division
E
none of these

Solution

## The correct option is B multiplicationIn order to answer this question, take two odd numbersLet the odd numbers be $$1$$ and $$3$$$$1+3 = 4$$ (not odd)$$3-1=2$$ (not odd)$$1 \times 3 = 3$$ (odd)$$1\div 3 = 1/3$$ (not an integer)So, the odd integers are closed under multiplication.Mathematics

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