Assertion (A) & Reason (B) MCQ

MCQ 11 Mark

Assertion (A): Let the positive numbers a, b, c be in A.P., then $\frac{1}{b c}, \frac{1}{a c}, \frac{1}{a b}$ are also in A.P.
Reason (R): If each term of an A.P. is divided by a b c, then the resulting sequence is also in A.P.

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

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MCQ 21 Mark

Assertion (A): A sphere of radius 7 cm is m ounted on the solid cone of radius 6 cm and height 8 cm . the volume of the combined solid is $1737.47 cm^3$. [Take $\pi=3.14$ ]

Reason (R): Volume of sphere and surface area of cone is given by $\frac{4}{3} \pi r^3$ and $\frac{1}{3} \pi r^2 h$ respectively.

A
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.
✓
A is true but R is false.
D
A is false but R is true

Answer

Correct option: C.

A is true but R is false.

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Maths Assertion (A) & Reason (B) MCQ

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