Finding the Unknown Class 7 Assertion and Reason Questions

Finding the Unknown Class 7 Assertion and Reason Questions

Finding the Unknown Class 7 Assertion and Reason Questions

In each of the following questions, two statements have been given. One has been labelled as Assertion (A) and the other has been labelled as Reason (R). You have to choose the correct option, from the given four options. -

(a) Both the statements (A) and (R) are correct and (R) is the correct explanation of (A).

(b) Both the statements (A) and (R) are correct but (R) is not the correct explanation of (A).

(c) (A) is correct but (R) is not correct.

(d) (R) is correct but (A) is not correct.

1. (A): 5 is a solution of the equation 6x - 5 = 5x + 10.

(R): Putting x = 5, L.H.S. = 25 and R.H.S. = 35.

Answer:

(d) (R) is correct but (A) is not correct.

2. (A) : The equations x + 3 = 6 and 4x - 1 = 11 have the same solution.

(R): x = 3 satisfies both the equations.

Answer:

(a) Both the statements (A) and (R) are correct and (R) is the correct explanation of (A).

3. (A) : 4x - 3 = 9 does not have a solution in integers.

(R): x = 3 satisfies the above equation.

Answer:

(d) (R) is correct but (A) is not correct.

4. (A): The equation 3x + 5 = 4x - 9 is equivalent to the equation 3x = 4x - 9 - 5.

(R): Solution of the equation 3x + 5 = 4x - 9 is 14.

Answer:

(b) Both the statements (A) and (R) are correct but (R) is not the correct explanation of (A).

5. (A): Solution of the equation 3x + 7 = - 20 is a negative integer.

(R): x = -7 satisfies the above equation.

Solution:

(c) (A) is correct but (R) is not correct.