If n is an integer, then every integral multiple of 3 can be represented by the expression .

2n+1

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2n-1

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Solution

The correct option is B 3n
The first multiple of 3 = 3 $\times$ 1 = 3,
the second multiple of 3 = 3 $\times$ 2 = 6.
Similarly, the nth multiple of 3 = 3 $\times$ n
= 3n.

Hence, if n is an integer, then every integral multiple of 3 can be represented by the expression 3n.

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