If a and b are two different positive real numbers then which of the following statement is true?

If a, b are distinct positive real numbers, then which one of the following is true?

If a/b=c/d and a,b,c,d are positive numbers, then which of the following statement are true? If false write statement. (b-a)/(a)=(d-c)/c

If any two irrational numbers are added, then which of the following statement is true?

If a_(1),a_(2),a_(3) be any positive real numbers, then which of the following statement is not true.

If a_(1),a_(2),a_(3) be any positive real numbers, then which of the following statement is not true.

If a/b=c/d and a,b,c,d are positive numbers, then which of the following statement are true?

If a, b and c are three real numbers, then which of the following is NOT true ?

If a is an even positive integer and b is an odd positive integer, then which of the following statement is true?