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Geometric Sequences

-20 , -16 , -...

Question

-20 , -16 , -12 , -8 ....
In the sequence above, each term after the first is 4 greater than the preceding term. Which of the following could not be a term in the sequence?

A

220

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B

440

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C

668

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D

762

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Solution

The correct option is C 762
All terms in the sequence will be multiples of 4.
762 is not a multiple of 4

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