MCQ
Assertion (A): The expression x + y + z is inthree variables.
Reasons (R): There are three variables x, y and z.
  • 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

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: Observe the figure as reasons for the following assertions:
Assertion (A): The total of the number of books of English and Science is $300$.
Assertion (A) If $x+0=0+x=x, x$ is a rational number, then 0 is called the additive inverse of $x$.
Reason (R) Multiplicative inverse of $x$ is $\frac{1}{x}.$
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 $(A)$: nonsquare numbers lie between the pair of numbers $80^2$ and $81^2$ are $160$.
Reasons $(R)$: squares of $12$ and $13$ and then subtract square of $12$ from square of $13$, we get numbers of non-square numbers
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 $(A) :$ All the angles of a rectangle are equal.
Reason $(R) :$ The opposite sides of a rectangle are not equal.
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 common factor of $10ab, 30bc, 50ca$ is $10$ Reasons (R): A common factor is a number that can be divided into two different numbers, without leaving a remainder.
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 multiplicative inverse of $2 - 3$ is $1$
Reasons $(R)$: The power of a number says how many times to use the number in a multiplication
Assertion (A): Whole numbers are 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.
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 temperature time graph and consider it as reasons for the following assertions: Assertion (A): The coordinates of the origin are $(0, 0)$
Assertion (A): The value of x2 - 2yx + y2 when x = 1, y = 2 is 1.
Reasons (R): a numerical coefficient is defined as a fixed number that is multiplied to a variable.
Assertion (A): (20 + 4-1) × 22 is equal to 6.
Reasons (R): The power of a number says how many times to use the number in a multiplication.