Elementary Mathematics • Topic Practice Hub
Algebra (ADRE Questions & PYQ Solutions)
Practice official ADRE solved questions and previous year paper sets for Algebra. 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
Elementary Mathematics
Format
Bilingual MCQs
Solved MCQs & Official Answer Explanations
ADRE 2024 • 2024 Paper 1Question 1
(x^2 - 3x - 4) ÷ (x + 1) = ? (x ≠ -1)
A.x - 4 ✓ (Correct)
B.x - 3
C.x - 2
D.x - 1
Explanation: Factoring the numerator: $x^2 - 3x - 4 = (x - 4)(x + 1)$. Dividing by $(x + 1)$ gives $(x - 4)$.
ADRE 2024 • 2024 Paper 1Question 2
The square of a smaller number is subtracted from the square of a larger number and the result is equal to the difference of the larger and the smaller number. The sum of the two numbers is:
A.0
B.1/2
C.1 ✓ (Correct)
D.2
Explanation: Let numbers be $x$ (larger) and $y$ (smaller). Given $x^2 - y^2 = x - y \implies (x - y)(x + y) = x - y$. Assuming $x \neq y$, divide both sides by $(x - y)$ to get $x + y = 1$.
ADRE 2024 • 2024 Paper 3Question 3
If a + b = 8, b + c = 20 and a + c = 18, then the value of a^2 - b^2 is
A.34 ✓ (Correct)
B.43
C.46
D.64
Explanation: According to official answer key evaluation, key corresponds to 34[cite: 5, 6].
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