A man can row at a speed of 64 km/h in still water to a certain upstream point and back to the starting point in a river which flows at 8 km/h. Find his average speed for total journey.
Speed upstream = 64 – 8 = 56 km/hr. Speed downstream = 64 + 8 = 72 km/hr. Average speed = x/y = (2xy)/(x + y) = (2 x 56 x 72)/(56 + 72) = 63 km/hr
Which of the following statements is true?
Who among the following live on the floors between the floors on which Ji-hu and Min-ho live?
...Who lives on top floor?
Who lives immediately above P?
What will be the difference between the marks secured by E and D?
Who among the following appeared for IBPS Clerk?
____ is kept on the eighth position?
Who among the following lives on the bottommost floor?
Who is the Doctor?
Number of floors between Shreya and Garima is same as the number of floors between Nikita and ____?
