TCS Company

George and mark can paint 720 boxes in 20 days , Mark n Harry 24,
Harry n George 15 days.
So total no. Of boxes painted by them ?

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TCS Other Question

In a particular year the month of january had exactly 4 thursdays and 4 sundays , on which day of the weekk, jan 1 occurs? f(f(n))+f(n)=2n+3, f(0)=1,
find f(2012)?