RRB Group-D 28th Sep 2018-shift -2
Instructions
For the following questions answer them individually
Question 56
Pipe A can fill an empty cistern in 5 hours while Pipe B lakes 6.25 hours to fill it. The two pipes are opened simultaneously when the cistern is empty, but Pipe B is turned off after some time as a result of which the cistern is filled in 3.4 hours. For how many hours was Pipe B open?
Question 57
A 112 ft tall Shiva statue (Adiyogi) was unveiled on $$24^{th}$$ February 2017 in Tamil Nadu by:
Question 59
The ratio of chairs to tables in an office is 9 : 7. If there are 42 more chairs than tables, find the number of chairs in the office.
Question 60
A ball thrown up vertically returns to the ground after 12.5 seconds. Find the velocity with which it was thrown up. ( g = 10$$ms^{-2}$$)
