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Find the next term in the series: 5I, 7J, 11L, 17O, ?
A25Y
B20P
C18C
D25S
Answer & Solution
Correct answer: D. 25S
1. Numbers 5, 7, 11, 17 increase by 2, 4, 6; next gap is 8, giving 17 + 8 = 25.
2. Letters I(9), J(10), L(12), O(15) increase by 1, 2, 3; next gap is 4, giving 15 + 4 = 19 = S.
3. So the next term is 25S.
_Source: RRB Group D CEN-02/2018 PYQ, Q.6._
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