Logical Reasoning 4 Solved Past Papers 2023 to 2025 Archives

Word Problems on Ages Past Papers

Solved past paper MCQs for Word Problems on Ages from official UHS, NUMS, SZABMU, DUHS, and KMU examinations. Includes verified distractor autopsies and step-by-step cognitive explanations.

Boards Included: DUHS KMU
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Official printable A4 booklet containing all 4 verified past paper MCQs with unbroken options, 5-column rapid answer key, and Propolis cognitive error autopsies.

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#1 of 4 KMU 2025
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A father is 5 years older than twice his son's age. If the son is 12, what is the father's age?
A
28 years
B
29 years
C
30 years
D
32 years
View Answer & Propolis Autopsy
Correct Key: Option B Diagnostic Explanation
Concept: Algebraic Linear Formulation.

Formula: \(\text{Father} = 2 \times (\text{Son}) + 5\)

Solution:

  • \(\text{Father} = 2(12) + 5 = 24 + 5 = 29\text{ years}\).


Why other options are incorrect:

• Option C: Calculates \(2(12) + 6 = 30\).
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#2 of 4 KMU 2025
Permalink
A father is 5 years older than twice his son's age. If the son is 12, what is the father's age?
A
28 years
B
29 years
C
30 years
D
32 years
View Answer & Propolis Autopsy
Correct Key: Option B Diagnostic Explanation
Concept: Linear Age Formulation.

Formula: \(2(12) + 5 = 29\)

Solution: Father = 29 years old.

Why other options are incorrect:

• Option A: Omits the 5-year addition.
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#3 of 4 DUHS 2023
Permalink
Essa is younger than Moosa.

Let \(X\) = Twice Essa's age
Let \(Y\) = Moosa's age

Which of the following is true?
A
X > Y
B
Y > X
C
X = Y
D
The relationship cannot be determined
View Answer & Propolis Autopsy
Correct Key: Option D Diagnostic Explanation
Concept: Algebraic Inequality Indeterminacy.

Formula: \(E < M\)

Solution: Doubling \(E\) can make \(2E > M\), \(2E = M\), or \(2E < M\) depending on exact numbers (e.g. if \(E=3, M=10\) vs \(E=8, M=10\)). Thus, relationship is indeterminate.

Why other options are incorrect:

• Options A, B, and C: Assume specific numeric values.
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#4 of 4 DUHS 2023
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In 5 years, Sarah will be 18. How old is she now?
A
13
B
14
C
15
D
16
View Answer & Propolis Autopsy
Correct Key: Option A Diagnostic Explanation
Concept: Simple Age Algebra.

Formula: \(\text{Current Age} = 18 - 5\)

Solution: Current age = 13.

Why other options are incorrect:

• Options B, C, and D: Incorrect subtraction.
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