Two trains approach each other at 21 kmph and 25 kmph from 2 places 230 km apart. After how many hours they will meet?
Distance = 230 km Speed of train 1 = 21 km/hr Speed of train 2 = 25 km/hr Relative speed = 21 + 25 = 46 km/hr Therefore, speed = distance/time ⇒ 46 = 230/Time ⇒ Time = 230/46 = 5 hrs
How many people belong to only one group?
Which of the following represents the same relation as Travellers, Airplane and Train have?
Uttar pradesh , India, Asia
Hinduism, Islamic , Religion
Which of the following diagrams indicates the best relation between Oil, Wick and Lamp?
The diagram represents the number of students studying different subjects. What is the number of students who study both Hindi and Chemistry?
Which of the following diagrams indicates the best relation between the fact that Solid common salt is hygroscopic, crystalline and non –electroly...
Choose the Venn diagram which best illustrate the three given classes.
Dog, Animal, Pet.
The number of non-football players is: