Download App

Rational Numbers — MATHS STD 8 — Question

Gujarat BoardEnglish MediumSTD 8MATHSRational Numbers1 Mark
MCQ
Assertion (A): Rational numbers are not associative for division
Reason (R): The associative property states that the sum or the product of three or more numbers does not change if they are grouped in a different way.
  • ✓
    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

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

→
Observe the figure as assertions for the following reasons:

Reason (R): the expenditure done on food is Rs 3000.
→
Assertion (A): If 20 cows eat as much as 15 oxen, then 48 cows will eat at much as 36 oxen.
Reasons (R): A direct proportion shows the direct the relation between two quantities. An inverse proportion shows inverse or indirect relation between two quantities.
→
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 $(A):$ Whole numbers are not commutative for division
Reason $(R):$ Rational numbers are commutative under addition and multiplication
→
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 ratio $4 : 2$5 converted to percentage is $18\%$
Reasons $(R)$: A ratio can be defined as the relationship or comparison between two numbers of the same unit to check how bigger is one number than the other one.
→
Assertion (A): The number of zeroes at the end of the cube root of the cube number 1000 is 1.
Reasons (R): The cube root of a number is the factor that we multiply by itself three times to get that number.
→
Assertion (A): The one’s digit in the cube root of the cube number 1331 is 1.
Reasons (R): The cube root of a number is the factor that we multiply by itself three times to get that number.
→
Assertion (A): In a school out of 340 students, 55% students are of Science. The remaining students are of Commerce. The number of students of Commerce are 153.
Reasons (R): A fraction represents a part of a whole or, more generally, any number of equal parts.
→
Assertion (A): All the parallelograms are rectangles
Reason (R): All the rhombuses are parallelograms.
→
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 factorisation of $ab - a - b + 1$ is $(a - 1) (b - 1)$
Reasons (R): The factorisation is defined as expressing or decomposing a number or an algebraic expression as a product of its prime factors or irreducible factors.
→