Paper 1 · Mathematical Reasoning and Aptitude
In the arrangement 8, 4, 3, 14, ?, 16, 18, the middle values run 3, 4, 5. Find the missing number.
A4
B5 ✓ Correct
C6
D8
Correct answer: (B) 5 — The missing number is 5, so that is the answer.
Explanation
★The missing number is 5, so that is the answer.
★In this arrangement the central values form a small rising run.
★That run reads 3, 4 and then the missing value.
★A run of 3, 4 continues naturally with 5.
★So the missing value is 5.
★This completes the ascending sequence 3, 4, 5.
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