Question: How is X related to Y?Statements:1. Y says, "I have only one brother".2. X says, "I have only one sister".
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.
Q47. What is the height of the triangle?
I. The area of the triangle is 20 times its base.
II. The perimeter of the triangle is equal to the perimeter of a square of side 10 cm.
Two towns are connected by railway. Can you find the distance between them?
I. The speed of the mail train is 12 km/hr more than that of an express train
II. A mail train takes 40 minutes less than an express train to cover the distance