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Question : Directions: Which of the following numbers will replace the question mark (?) in the given series?
121, 169, 289, ?, 529, 841

Option 1: 484

Option 2: 361

Option 3: 343

Option 4: 441


Team Careers360 4th Jan, 2024
Answer (1)
Team Careers360 17th Jan, 2024

Correct Answer: 361


Solution : Given:
121, 169, 289, ?, 529, 841

In the above-given series, determine the square of the consecutive prime numbers (starting from 11) to get the missing term of the series.
(11) 2 = 121; (13) 2 = 169; (17) 2 = 289; (19) 2 = 361; (23) 2 = 529; (29) 2 = 841

So, 361 is the missing number of the series. Hence, the second option is correct.

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