Question
A person is to reach a destination 40 km away. If he
covers the first 25 km in 4 hours then at what constant speed should he go so that the average speed for the whole journey becomes 8 km/hour?Solution
ATQ, 
Therefore, the person should maintain a constant speed of 15 km/hour for the remaining distance to achieve an average speed of 8 km/hour for the whole journey.
Which of the following statement(s) is/are true?
I)Â Three floors are between T and X
II)Â U lives on the lowermost floor
II...
O uses which of the following car?
How many persons live between the one who likes Golf and the one who likes Cricket?
Who lives on the ninth floor ?
Three persons work in which of the following shifts?
Who among the following person lives on the floor immediately above A?
E attends which of the following exams?
Which of the following box is kept three boxes above box W?
Which of the following boxes is kept on shelf six?
James takes leave on which day?
