Example  12 - Chapter 14 Class 11 Mathematical Reasoning - Part 2

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Example 12 Given below are two pairs of statements. Combine these two statements using if and only if . (ii) p: If the sum of digits of a number is divisible by 3, then the number is divisible by 3. q: If a number is divisible by 3, then the sum of its digits is divisible by 3. A number is divisible by 3 if and only if the sum of its digits is divisible by 3. Or The sum of digits of a number is divisible by 3 ; if and only if a number is divisible by 3

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