mind twister

sachin kakkar (CA) (188 Points)

01 February 2011  

ANS IT IF U CAN WITH VALID SUPPORTING REASONS......

 

10 PEOPLE  WORKING TOGETHER CAN PERFORM A TASK IN 10 HRS...

15 OTHER PEOPLE WORKING TOGETHER CAN PERFORM THE SAME TASK IN 5 HRS....

HOW MUCH TIME WOULD THESE 25 (10+15) PEOPLE TAKE TO PEFORM THE SAME TASK IF PUT TO WORK TOGETHER.....

CA'S REPLY SOON.......