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If payday is Friday, there were five months with five Fridays in 2010.
3
In 2011, the months that have 5 Fridays are; April, July, September and December.
If payday is Friday, there were four months with five Fridays in 2012.
4 Fridays are in August 2010.
There are 5 Fridays in October 2010.
There were 52 Fridays in the year 2010.
Every month had Fridays in 2012. March, June, August and November had 5 Fridays. All the other months had 4 Fridays.
There are 53 Fridays in 2010, the last one of which falls on December 31, 2010.
There were exactly 53 Fridays and 52 Saturdays in the year 2010.
53
53