What will come in place of the question mark (?) in the following number series?
3, 5, 7, ?, 13, 17, 21
Correct Answer: Option B
The pattern of the given series is:
→ 3,
→ 5 = 3 + 2,
→ 7 = 5 + 2,
→ ? = 7 + 3,
→ ? = 10,
→13 = 10 + 3,
→ 17 = 13 + 4,
→ 21 = 17 + 4
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