Assertion (A) & Reason (B) MCQ

MCQ 11 Mark

Assertion (A): The number 6358 rounded to the nearest hundred is 6400.
Reason (R): In a number, if the digit at the tens place is 5 then the number is rounded to the nearest hundred by increasing the hundreds digit by 1 and replacing each digit on its right by 0.

✓
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
B
Both Assertion (A) and Reason (R) are true and Reason (R) is not the correct explanation of Assertion (A).
C
Assertion (A) is true but Reason (R) is false.
D
Assertion (A) is false but Reason (R) is true.

Answer

Correct option: A.

Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).

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MCQ 21 Mark

Assertion (A): In Roman numerals, CM is equal to 900.
Reason (R): In Roman numerals, a smaller numeral written to the right of a larger numeral is always added to the larger numeral.

A
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
✓
Both Assertion (A) and Reason (R) are true and Reason (R) is not the correct explanation of Assertion (A).
C
Assertion (A) is true but Reason (R) is false.
D
Assertion (A) is false but Reason (R) is true.

Answer

Correct option: B.

Both Assertion (A) and Reason (R) are true and Reason (R) is not the correct explanation of Assertion (A).

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MCQ 31 Mark

Assertion (A): The number 54190 is greater than 39816.
Reason (R): Out of two given numbers, the number whose leftmost digit is greater than the leftmost digit of the other is always greater of the two.

A
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
B
Both Assertion (A) and Reason (R) are true and Reason (R) is not the correct explanation of Assertion (A).
✓
Assertion (A) is true but Reason (R) is false.
D
Assertion (A) is false but Reason (R) is true.

Answer

Correct option: C.

Assertion (A) is true but Reason (R) is false.

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MCQ 41 Mark

Assertion (A): The Hindu-Arabic number system differs from the international number system due to the fact that it uses 10 digits.
Reason (R): The 10 digits used in the Hindu-Arabic number system are 0, 1, 2, 3, 4, 5, 6, 7. 8 and 9.

A
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
B
Both Assertion (A) and Reason (R) are true and Reason (R) is not the correct explanation of Assertion (A).
C
Assertion (A) is true but Reason (R) is false.
✓
Assertion (A) is false but Reason (R) is true.

Answer

Correct option: D.

Assertion (A) is false but Reason (R) is true.

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MATHS Assertion (A) & Reason (B) MCQ

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