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Which of the following numbers will replace the question mark (?) in the given series? 99, 101, 104, 109, 116, ?
Question

Which of the following numbers will replace the question mark (?) in the given series?
99, 101, 104, 109, 116, ?

A.

132

B.

127

C.

124

D.

128

Correct option is B

The given series is: 99, 101, 104, 109, 116, ?

Step 1: Analyzing the differences:

  • 101−99=2
  • 104−101=3
  • 109−104=5
  • 116−109=7

Step 2: Identifying the pattern:

The differences are +2, +3, +5, +7, which are consecutive prime numbers.

Step 3: Calculating the next term:

The next difference should be the next prime number after 7, which is 11.
Adding 11 to the last number in the series:
116+11=127

Final Answer:

The missing number is 127.

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