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Subject :Maths    Class : Class 7

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Subject :Maths    Class : Class 7

In each of the following questions, a statement of Assertion (A) is given followed by a corresponding statement of Reason (R) just below it. Of the statements, mark the correct answer as
Assertion : The median of the data 105, 103, 102, 107, 120, 124, 111 is 124.
Reason : When the number of observations(n) is odd, then the median is the value of the (n/2+1)th observation. If the number of observations(n) is even, then the median is the mean of the (n/2)th observation and the (n/2+1)th observation.

A If both assertion and reason are true and reason is the correct explanation of assertion.
B If both assertion and reason are true but reason is not the correct explanation of assertion.
C If assertion is true but reason is false.
D If assertion is false but reason is true.


How can the median of the data set be 124, which is actually the highest number?

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Subject :Maths    Class : Class 8

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Subject :Maths    Class : Class 9

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Subject :Maths    Class : Class 6

Directions : In each of the following questions, a statement of Assertion (A) is given followed by a corresponding statement of Reason (R) just below it. Of the statements, mark the correct answer as
Assertion : The place value and face value of digit 8 in 18,002,403 is 8 × 1,000,000 and 8 respectively.
Reason : Place value is value of digit itself and face value depends upon the place it occupies.
AIf both assertion and reason are true and reason is the correct explanation of assertion.
B If both assertion and reason are true but reason is not the correct explanation of assertion.
C If assertion is true but reason is false.
D If assertion is false but reason is true.


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Subject :Maths    Class : Class 8

In each of the following questions, a statement of Assertion is given followed by a corresponding statement of Reason just below it. Of the statements, mark the correct answer as
Assertion : 16x4 – 81 = (4x2 + 9)(4x2 – 9).
Reason : a2 – b2 = (a + b)(a – b).

A If both assertion and reason are true and reason is the correct explanation of assertion.
B If both assertion and reason are true but reason is not the correct explanation of assertion.
C If assertion is true but reason is false.
D If assertion is false but reason is true.


I think the assertion is false as (4x^2-9) can be further simplified as (2x 3)and (2x-3).

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Class : Class 8

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Subject :Maths    Class : Class 7

In each of the following questions, a statement of Assertion (A) is given followed by a corresponding statement of Reason (R) just below it. Of the statements, mark the correct answer as
Assertion : (12 + 22 + 32) x (2/3)3 ÷ (1/4)2 = (3/7)6
Reason : For any rational number a and positive integer n, we define an as a × a × a × a × ........ × a (n-times)

A If both assertion and reason are true and reason is the correct explanation of assertion
B If both assertion and reason are true but reason is not the correct explanation of assertion
C If assertion is true but reason is false
D If assertion is false but reason is true.


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Subject :Maths    Class : Class 7

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Subject :Maths    Class : Class 6

In each of the following questions, a statement of Assertion (A) is given followed by a corresponding statement of Reason (R) just below it. Of the statements, mark the correct answer as
Assertion : The variable and constants of the algebraic expression 5x + 2 is 5, 2 and x respectively.
Reason : Variables are the alphabets used to represent unknown numbers and constants have the fixed value.

A If both assertion and reason are true and reason is the correct explanation of assertion.
B If both assertion and reason are true but reason is not the correct explanation of assertion.
C If assertion is true but reason is false.
D If assertion is false but reason is true.


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Subject :Maths    Class : Class 9

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