MCQ
Assertion (A): Integers are not associative for addition
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.
  • 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
  • A is false but R is true

Answer

Correct option: D.
A is false but R is true
D

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

Similar questions

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): 300000000 is equal to $3 × 10^8$
Reasons (R): An exponent refers to the number of times a number is multiplied by itself
Assertion (A): If $x$ and $y$ are inversely proportional then $x y=k$, where $k$ is a positive constant.
Reason (R): In inverse proportion, as the value of $x$ increases the value of $y$ decreases.
Assertion (A): Meenu purchased a fridge for Rs 10000 and sold it for Rs 8000. Loss = Rs 2000.
Reasons (R): Loss = Cost Price-Selling Price.
Assertion (A): The unit digit in the square of the number 1000 is 1.
Reasons (R): Units digit of a number is the digit in the one’s place of the number. i.e. it is the rightmost digit of the number.
Assertion (A): $\frac{2^{-100}}{2^{-101}}=2^{-201}$
Reason (R): For any integers $a, m$ and $n$, we have $\frac{a^m}{a^n}=a^{m-n}$
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 volume of a cylinder of base radius $r$ and height $h$ is $\pi r^2 h$ Reasons $(R):$ The volume of cylinder is the amount of space in it. It can be obtained by multiplying its base area by its height.
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): 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.
Assertion (A): The ratio of 10m to 1km is 1 : 10.
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.
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:Observe the following velocity-time graph and consider it as reasons for the following assertions:

Assertion (A): The fall in velocity from $7$ to $11$ is $90\ km /hour$