Assertion :100 years make 10 decades. Reason: Every century is divided into 10 decades.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Assertion is incorrect but Reason is correct

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
We know that 1 decade is equal to 10 years.
So, $100 y e a r s = \frac{100}{10} d e c a d e s = 10 d e c a d e s$
So, the assertion statement is true.
Reaon statement is also true and it explains the assertion very well.

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