How is N related to S?
I. Brother of N is the only grandson of S's father.
II. S has 2 children who are of different genders.
Will n be an integer?
I. 3n is an odd number.
II. 2n is an even number.
If m and n are both positive integers, then how less is n than m?
I. m + n =20
II. m = n2
What is the difference in the ages of P and K? I. P is 20 yr older than M. II. M is 2 yr younger than Z.