Elitmus Exam Numerical Ability Algebra

19/07/2015 elitmus exam question:
when the ratio of two cones A and B is something. when the radii of those are interchanged the ratio is something then what will be ratio when heights are interchanged ? how to solve it., i forgotthe ratios friends

Read Solution (Total 1)

Elitmus Other Question
Raju and Reenu are standing in a row there are 9 peoples. what is the probability that at least 3 people will stand between Raju and Reenu
 Que asked in elitmus 19th july in bangalore in set-D..............
A Man is on the escalator moving down wards and in a hurry he also steps down 10 steps manually and by the time he has 10 steps he is on the ground floor.Then by hearing some noise in the escalator he ran back in the same escalator with 10 times speed than the 1st time and he has 25 steps to reach the 1st floor.
Then the question is how many steps will be visible if escalator is switched off?