13. If x is an integer and y = 3x + 2, which of the following CANNOT be a divisor of y?

(a) 5

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(b) 6

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(d) 8

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Solution

The correct option is B (b) 6
Ans: (b)
Sol: If x= 6, y=20 => option A is wrong; If x= 11, y=35 => option C is wrong; If x= 10, y=32 => option D is wrong; for a number to be divided by 6, it should be divided by 3 first. 3x+2 gives a remainder of 2 when divided by 3. Hence 6 cannot be a divisor of ‘y’.

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