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Check the validity of the following statement.p: 125 is divisible by 5 and 7.

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Question

Check the validity of the following statement.
p: 125 is divisible by 5 and 7.

Sum
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Solution

Given that p: 125 is divisible by 5 and 7.

Let q: 125 is divisible by 5.

And r: 125 is divisible by 7.

Here q is true and r is false.

⇒ q ∧ r is false.

Hence, p is not valid.

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Chapter 14: Mathematical Reasoning - Exercise [Page 265]

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NCERT Exemplar Mathematics Exemplar [English] Class 11
Chapter 14 Mathematical Reasoning
Exercise | Q 13.(i) | Page 265

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