Logical Reasoning & Mental Ability • Topic Practice Hub
Number Series (ADRE Questions & PYQ Solutions)
Practice official ADRE solved questions and previous year paper sets for Number Series. Includes step-by-step solutions and explanations. Explore 3 questions collected from official SLRC ADRE Grade 3 & Grade 4 papers.
Total MCQs
3
Official PYQs
3
Subject
Logical Reasoning & Mental Ability
Format
Bilingual MCQs
Solved MCQs & Official Answer Explanations
ADRE 2024 • 2024 Paper 1Question 1
Which two terms would come next in the series: 24, 26, 35, 63, 48, 124, 63, 215, ?, ?
A.76, 430
B.83, 310
C.99, 511
D.80, 342 ✓ (Correct)
Explanation: Alternating series: Series 1: $5^2-1=24, 6^2-1=35, 7^2-1=48, 8^2-1=63, 9^2-1=80$. Series 2: $3^3-1=26, 4^3-1=63, 5^3-1=124, 6^3-1=215, 7^3-1=342$. Next terms: 80 and 342.
ADRE 2024 • 2024 Paper 2Question 2
What would be the next in the following series? 144, 100, 64, 36, ?
A.25
B.49
C.81
D.16 ✓ (Correct)
Explanation: Series of squares of even numbers in descending order: $12^2=144, 10^2=100, 8^2=64, 6^2=36, 4^2=16$[cite: 3].
ADRE 2024 • 2024 Paper 3Question 3
Select the appropriate number to correctly continue the sequence 27, 30, 37, 50, ?, 98.
A.69 ✓ (Correct)
B.73
C.81
D.91
Explanation: Differences between terms follow sequence of prime steps + consecutive increments: $+3, +7, +13, +19, +29$. $50 + 19 = 69$[cite: 5, 6].
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