Numerical Appli...

In how many ways can $$4$$ people be seated on a square table, one on each side? 

The number of ways four boys can be seated around a round table in four chairs of different colours is:

If $$9^{th}$$ of the month falls on the day preceding Sunday then what day will be $$1^{st}$$ of the month fall?

If the day before yesterday was Thursday, when will Sunday be?

Seven people are seated in a circle. How many relative arrangements are possible?

A work can be completed by $$40$$ workers in $$40$$ days. If $$5$$ workers leave every $$10$$ days, in how many days work will be completed?

On what day of the week India will celebrate its Republic Day on 26th January, 2015 ?

Monday, Tuesday etc. are numbered as 1,2 and so on. If 8th December 1994 was Monday, what would be the number of the day 8th January 1995 ? 

Mean of $$41, 39, 48, 52, 46, 62, 54, 40, 96, 52, 98, 49, 42, 52, 60 \ is\ 54.8$$

Value of 0! is always 1.