Assertion (A) & Reason (B) MCQ

MCQ 11 Mark

Assertion (A): Common difference of the AP -5, -1, 3, 7, ... is 4.
Reason (R): Common difference of the AP a, a + d, a + 2d, ... is given by d = 2nd term - 1st term.

✓
Both A and R are true and R is the correct explanation of A.
B
Both A and R are true but R is not the correct explanation of A.
C
A is true but R is false.
D
A is false but R is true.

Answer

Correct option: A.

Both A and R are true and R is the correct explanation of A.

(A) Both A and R are true and R is the correct explanation of A.
Explanation: Common difference, d = -1 - 1(-5) = 4
So, both A and R are true and R is the correct explanation of A.

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MCQ 21 Mark

Assertion (A): Two identical solid cubes of side 5 cm are joined end to end. The total surface area of the resulting cuboid is 350 $cm ^2$.
Reason (R): Total surface area of a cuboid is 2(lb + bh + hl)

A
Both A and R are true and R is the correct explanation of A.
✓
Both A and R are true but R is not the correct explanation of A.
C
A is true but R is false.
D
A is false but R is true.

Answer

Correct option: B.

Both A and R are true but R is not the correct explanation of A.

(B) A is false but R is true.
Explanation: A is false but R is true.

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Maths Assertion (A) & Reason (B) MCQ

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