1.

3x,3x+1,,3x-1,3x+1 which is an even number ?​

Answer»

Answer:

it depends on the condition, if we take x as odd NUMBER than,3x will be odd and the other will be even no. For EXAMPLE- (X=1 ),3×1=3 , 3×1+1=4 & 3×1-1=2

if we take x as even no. than the answer will be just opposite of FIRST condition . For example - (X=2) , 3×2=6 , 3×2 +1=7 , 3×2-1=5 .

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