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Which of these sequences are arithmetic?

Which of these sequences are arithmetic?-example-1
User Alkasm
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1 Answer

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Answer:

27, 40, 53, 66, 79

Explanation:

This is because all of the numbers share a common difference/change - 13.

The first choice is incorrect as -5 to -3 is adding 2, but -3 to 3 is adding 6, therefore breaking the sequence.

The second choice is incorrect as albeit it add's 1/4 each time, that would be a geometric sequence as it's a common ratio instead.

The third choice is incorrect as it originally adds 7 to each number before suddenly jumping from 28 to 56.

The final choice is incorrect as 1 to 2 is 1 but 2 to 4 is 2, thus, once again, breaking the sequence.

Hope this helps!

User Ramadhan
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