Question:
Find the next group of alphabets: CFI, DHL, ILO, LPT, __________________ ?
Find the next group of alphabets: CFI, DHL, ILO, LPT, __________________ ?
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For alphabet series, check (i) the gap between letters within each term and (ii) how those gaps alternate. Also see if starting letters of every alternate term form their own sub-sequence.
Updated On: Aug 14, 2025
- ORU
- RUW
- OQT
- OSV
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The Correct Option is A
Solution and Explanation
Step 1: Observe the spacing inside each group.
CFI has letters separated by \(+3\): \(C \to F \to I\).
DHL has letters separated by \(+4\): \(D \to H \to L\).
ILO has letters separated by \(+3\): \(I \to L \to O\).
LPT has letters separated by \(+4\): \(L \to P \to T\). Step 2: Identify the alternating pattern.
The step sizes alternate: \(+3,\ +4,\ +3,\ +4,\ \ldots\).
Therefore, the next group must again use a step of \(+3\). Step 3: Track the starting letters of the \(+3\) groups.
1st \(+3\) group starts at \(C\) \(\Rightarrow\) CFI.
3rd \(+3\) group starts at \(I\) \(\Rightarrow\) ILO.
So the 5th (next) \(+3\) group should start \(+6\) letters later: \(I \to O\).
From \(O\), add \(+3\) twice: \(O \to R \to U\). \[ \boxed{\text{Next group} = \text{ORU}} \]
CFI has letters separated by \(+3\): \(C \to F \to I\).
DHL has letters separated by \(+4\): \(D \to H \to L\).
ILO has letters separated by \(+3\): \(I \to L \to O\).
LPT has letters separated by \(+4\): \(L \to P \to T\). Step 2: Identify the alternating pattern.
The step sizes alternate: \(+3,\ +4,\ +3,\ +4,\ \ldots\).
Therefore, the next group must again use a step of \(+3\). Step 3: Track the starting letters of the \(+3\) groups.
1st \(+3\) group starts at \(C\) \(\Rightarrow\) CFI.
3rd \(+3\) group starts at \(I\) \(\Rightarrow\) ILO.
So the 5th (next) \(+3\) group should start \(+6\) letters later: \(I \to O\).
From \(O\), add \(+3\) twice: \(O \to R \to U\). \[ \boxed{\text{Next group} = \text{ORU}} \]
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