Download App

Rational Numbers — MATHS STD 8 — Question

Gujarat BoardEnglish MediumSTD 8MATHSRational Numbers1 Mark
MCQ
Assertion (A): Whole numbers are closed under addition
Reason (R): A rational number is a number that is in the form of $\frac{\text{p}}{\text{q}}$ where p and q are integers, and q is not equal to 0.
  • 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

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Assertion (A) & Reason (B) MCQ" from Rational Numbers→Rational Numbers — all question types→MATHS STD 8 question papers→Gujarat Board STD 8 question papers→Gujarat Board question paper generator→

Similar questions

Assertion (A): The fare for a journey of 40km is Rs 25. Then 64km can be travelled for Rs 40.
Reasons (R): A direct proportion shows the direct the relation between two quantities. An inverse proportion shows inverse or indirect relation between two quantities.
→
Assertion (A) In a class of 40 students, a pie chart shows that $25\%$ of the students prefer pizza.
Reason (R) If a student is randomly selected from the class, there is a $25 \%$ chance that they will prefer pizza.
→
Directions: In the following questions, the Assertions $(A)$ and Reason(s) $(R)$ have been put forward. Read both the statements carefully and choose the correct alternative from the following:
Assertion (A): The root of the equation $5x - 8 = 7$ is $3$
Reason (R): The value of the variable which makes left hand side equal to right hand side in the given equation is called the solution or the root of the equation
→
Assertion (A): The measures of two angles of a quadrilateral are 110° and 100″. The remaining two angles are equal. The measure of each of the remaining two angles is 45.
Reason (R): Quadrilaterals are composed of two triangles. Seeing as we know the sum of the interior angles of a triangle is 180°, it follows that the sum of the interior angles of a quadrilateral is 360°.
→
Assertion (A): 384467000 is equal to 3.84467 × 108.
Reasons (R): An exponent refers to the number of times a number is multiplied by itself.
→
Directions: In the following questions, the Assertions $(A)$ and Reason(s) $(R)$ have been put forward. Read both the statements carefully and choose the correct alternative from the following:
Assertion (A): The root of the equation $\frac{7\text{x}}{3} = {3}$ is $\frac{5\text{x}}{3}$
Reason (R): The value of the variable which makes left hand side equal to right hand side in the given equation is called the solution or the root of the equation
→
Directions: In the following questions, the Assertions $(A)$ and Reason$(s)$ $(R)$ have been put forward. Read both the statements carefully and choose the correct alternative from the following:
Assertion $(A)$: $a^m\times a^n$ is equal to $a^{m+n}$
Reasons $(R)$: product of powers property
→
Assertion (A) The ratio of 4 cm to 1 m is 1 : 25.
Reason (R) A ratio means comparison between two quantities having same unit.
→
Assertion (A): The diagonals of a square bisect each other at right angles
Reason (R): The diagonals of a square do not divide the whole square into four equal parts.
→
Observe the figure as reasons for the following assertions:
Class interval Age (in year)Number of persons
15-2012
20-2520
25-3042
30-3520
35-406
Assertion (A): the size of the class intervals is -5.
→