100 glasses are there. A servant has to supply glasses to a
person If he supplies the glasses without any damage he
will get 3 paise otherwise he will loose 3 paise. At the
end of supplying 100 glasses if he gets 270 paise, how many
glasses were supplied safely.
A right circular cylinder and a cone are there. Base radius
of cone is equal to radius of cylinder. What is the ratio
of height to slant side if their volume are the same?
Two pipes can fill a tank in 10 and 12 hours respectively
while third pipe will make the tank empty in 20 hours. If
all three pipes operate simultaneously, in how many hours
the tank will be filled ?