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MATHS Assertion (A) & Reason (B) MCQ

Rational Numbers · Gujarat Board (GSEB) STD 7 (GSEB - English Medium). 3 questions.

Questions

Assertion (A) & Reason (B) MCQ

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3 questions · auto-graded multiple-choice test.

MCQ 11 Mark
Assertion (A) Reciprocal of $-1 \frac{2}{3}$ is $\frac{3}{-5}$.
Reason (R) The non-zero numbers whose product is 1 , are reciprocals.
  • ✓
    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
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MCQ 21 Mark
Assertion (A) $\frac{-5}{9} \times \frac{3}{10}=\frac{-1}{6}$
Reason (R) Sign of greater among $\frac{5}{9}$ and $\frac{3}{10}$ is negative, then the product must be negative.
  • 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.
C
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MCQ 31 Mark
Assertion (A) For two rational numbers $\frac{a}{b}$ and $\frac{c}{d}, \frac{a}{b}+\frac{c}{d}$ is also rational number.
Reason ( $R$ ) There are no two rational numbers whose sum is not a rational number.
  • ✓
    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
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