Select the number from the given options that can replace the question mark (?) in the following series.
205, 222, 241, 264, 293, ?
Answer
The correct answer is A: 324. The differences between consecutive terms are 17, 19, 23, 29, 31 — all prime numbers in sequence. The next prime after 31 is 31, so 293 + 31 = 324.
A.324✓ Correct
B.346
C.328
D.334
Explanation
The differences between consecutive terms are 17, 19, 23, 29, 31 — all prime numbers in sequence. The next prime after 31 is 31, so 293 + 31 = 324.
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