Reasoning question from Laboratory Attendant exam, 2026 by JKSSB
Assertion (A) and Reason (R).
Assertion (A): All squares are rectangles.
Reason (R): All rectangles have four right angles.
Choose the correct option:
Last updated Jun 17, 2026
Correct Answer:
Option B —
Both A and R are true but R is not the correct explanation of A
The correct option is B) Both A and R are true but R is not the correct explanation of A.
Here is the step-by-step breakdown of why:
1. Evaluating the Assertion (A)
Statement: "All squares are rectangles."
Is it true? Yes. By definition, a rectangle is a four-sided shape with four right angles. Since a square also has four sides and four right angles, it technically qualifies as a special type of rectangle (one where all four sides are equal).
2. Evaluating the Reason (R)
Statement: "All rectangles have four right angles."
Is it true? Yes. Having four right angles is a defining property of a rectangle.
3. Evaluating the Explanation
To be a rectangle, a shape only needs to have four sides and four right angles.
To be a square, a shape must have four right angles and all four sides must be equal in length.
The reason why a square is a rectangle is because it meets the definition of a rectangle (four right angles). However, stating that "all rectangles have four right angles" does not explain why a square specifically fits into that category. The missing link in the explanation is that squares also have four right angles.
Therefore, while both statements are completely true on their own, the Reason does not act as the correct explanation for the Assertion.
Correct Answer: B) Both A and R are true but R is not the correct explanation of A
Answer verified by Quintessence Classes faculty — Karan Nagar, Srinagar.
