A tank has two inlets: A and B. A alone takes 2 hours and B alone takes 3 hours to fill the empty tank completely when there is no leakage. A leakage was caused which would empty the full tank completely in ‘X’ hours when no inlet is open. Now, when only inlet A was opened, it took 3 hours to fill the empty tank completely. How much time will B alone take to fill the empty tank completely? (in hours)

At present, the respective ratio between the ages of A and B is 3:4 and that between A and C is 1:2. Six years hence, the sum of A, B and C will be 96 years. What is the present age sum of A,B and C will be 96 years. What is the present age of A

What was the difference between number of Science graduate employees and Arts graduate employees in company C

Total number of employees in Company C increased by 40% from April, 2013 to April, 2014. If 50% of total number of employees in company C in April, 2014 were Commerce graduates, what was the number of commerce graduate employees in Company C in April, 2014

If the respective ratio between number of Arts graduate employees and Commerce graduate employees in company D was 4:9, What was the number of Arts graduate employees in Company D

Total number of employees in Company E was 3 times the total number of employees in Company B. If the difference between number of Commerce graduate employees in Company E and that in Company B was 300, what was the total number of employees in company B