by Deepak
(Agra, Uttar pradesh, India)
I think the question is solved wrong...
the correct solution is like this...
the emptying pipe empty the tank in 8 min it means, it empty 1/8 per min and the filling pipe fill at the rate of 1/15 , so the actual rate of emptying the tank is .. (1/8)-(1/15) =7/90 = 1/12.9 , it means it 12.9 min to empty the full tank , so it would take 12.9/2 = 6.45 min to empty the half tank .. duh..
Join in and write your own page! It's easy to do. How? Simply click here to return to views.
Jan 03, 21 01:19 PM
I was given a psychological test years ago, but wasn’t told what it was for. The rating used a bell curve and my score fell in the above average not yet
Jul 18, 20 06:18 AM
Big Five Personality Tests measure five personality traits as extraversion, neuroticism, agreeableness, conscientiousness, and openness. Some companies deploy them in recruitment process.
Jul 17, 20 03:28 PM
Big 5 Personality Tests Measure Your behavioral dimensions to deal with people, work, change, environment and depression.