Mathematics · Mathematical Logic
The converse of the conditional statement 'If p, then q' is defined as 'If q, then p'. For example, the converse of 'If a number is even, then it is divisible by 2' is 'If a number is divisible by 2, then it is even' (where both are true). Among the following four true conditional statements, identify the one whose converse is also true.
- 1If a quadrilateral is a square, then its sides are equal.
- 2If the sum of all the digits of a number is divisible by 3, then the number is divisible by 3.✓
- 3If a number is divisible by 6, then it is divisible by 3.
- 4If a triangle is equilateral, then it is isosceles.
Correct answer
If the sum of all the digits of a number is divisible by 3, then the number is divisible by 3.
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