Question

Find the missing term of the following sequence.

. . . 34, __, 345, . . .

Answer 1

177.5

189.5

169.5

179

Answer 2

I assume we are working with geometric sequences, thus multiplying by some common factor.

Answer 3

none of the answer choices seem to work for a geometric sequence so we might presume this is arithmetic

we could re-write the second term as 34 + d or 345 - d since it's d more than the first term and d less than the third term

34 + d = 345 - d, solve for d then plug back in to find the second term