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Maths Assertion (A) & Reason (B) MCQ

Model Paper 9 · Gujarat Board (GSEB) STD 9 (GSEB - English Medium). 2 questions.

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Assertion (A) & Reason (B) MCQ

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2 questions · timed · auto-graded

MCQ 11 Mark
Assertion (A): Rational number lying between two rational numbers a and b is $\frac{a+b}{2}$.
Reason (R): There is one rational number lying between any two rational numbers.
  • 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.
  • C
    A is true but R is false.
  • D
    A is false but R is true.
Answer
(c) A is true but R is false.
Explanation: There are infinitely many rational numbers between any two given rational numbers.
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MCQ 21 Mark
Assertion (A): Two opposite angles of a parallelogram are $(3 x-2)^{\circ}$ and $(50-x)^{\circ}$. The measure of one of the angle is $37^{\circ}$.
Reason (R): Opposite angles of a parallelogram are equal.
  • 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.
  • C
    A is true but R is false.
  • D
    A is false but R is true.
Answer
(a) Both A and R are true and R is the correct explanation of A.
Explanation: Since, opposite angles of a parallelogram are equal.
Therefore, $3 x-2=50-x$
x=13
One angle is $37^{\circ}$
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Assertion (A) & Reason (B) MCQ - Maths STD 9 Questions - Vidyadip