Official Quant Thread for CAT 2012 [Part 1]Quantitative Report

Hi puys,
CAT 2011 season is finally over [smiley] [smiley]
Let start a new season of Quants thread for CAT 2012.. [smiley] [smiley]
Here are few links of Quants thread for CAT 2011 season...
Part-8
http://www.pagalguy.com/forum/quanti...at-2011-a.html (Official Quant Threa...
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a contractor undertook a project to complete in 20days which needed 5 workers to work continuously for all the days estimated ,but before the start of work the client wanted to complete the work before the scheduled time ,so the contractor employed 5 additional men every two days to complete the work in the time the client wanted

how many men were working on the day when the project was completed ?
a)5 b)10 c)20

1 worker = 1 unit per day

20*5 = 100 units

5*2 = 10 units
10*2 = 20 units
15*2 = 30 units
20*2 = 40 units

so , 20 workers at the time of completion
RC practice :- http://codecoax.com/grerc/
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