Question Details

Which of the following numbers will replace the question mark (?) in the given series?
93     111     139     157     185     203     ?

Options

A

211

B

215

C

231

D

227

Show Answer

Correct Answer :

Option C

231

Solution :

The correct answer is 231 (Option 3).

To find the missing number in the given series, let us calculate the difference between each pair of consecutive terms:

111-93=18

139-111=28

157-139=18

185-157=28

203-185=18

Observing the differences between consecutive terms, we see an alternating pattern of adding 18 and 28 (+18, +28, +18, +28, +18, ...).

To find the next term following 203, we need to add 28 to 203:

203+28=231

Therefore, the number that replaces the question mark (?) in the series is 231.

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