Question

If x and y are positive integers such that (3x + 7y) is a multiple of 11, then which of the following will be divisible by 11 ?

a.

4x + 6y

b.

x + y + 4

c.

9x + 4y

d.

4x - 9y

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Answer: (d).4x - 9y

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Q. If x and y are positive integers such that (3x + 7y) is a multiple of 11, then which of the following will be divisible by 11 ?

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