Question 1083579
<font color="black" face="times" size="4">Answer: <font color=red>2156 days</font>
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Explanation:


We have a pool of 66 workers to choose from.


We have two slots to fill: slot A, slot B


There are 66 choices for slot A.
There are 65 choices for slot B.
This makes 66*65 = 4290 permutations


Order doesn't matter so we divide this result by 2
4290/2 = 2145


There are 2145 different pairings possible. 
So far, 2145 days have passed because each day is exactly one pair of workers.


Add on the 11 extra days
2145+11 = 2156


which is the final answer. 


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Extra Info (optional)


If you wish to convert to years, then
2156/365 = 5.906849
so it takes roughly 5.906849 years


that's equivalent to roughly 5 years, 10.882188 months since
0.906849 years = (0.906849 yrs)*(12 mon/1 yr) = 10.882188 months


In short,
2156 days = 5.906849 years = 5 years, 10.882188 months
with the decimal values being approximate
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