Is this possible?
What factor should be crossed out of the product
1! х 2! х 3! х ............х 16! ,
to make the remaining expression a perfect square ?
Welcome back to the site POEMATICS!
The September Problem is a warming up. It is so easy, that even I can solve it.
What number is greater
sqrt(109) - sqrt(106) or sqrt (104) - sqrt (101) ?
n machines of factory A and 13 machines of factory B has produced together
n2 +10n -14 articles. Each machine produced the same number of articles.Which factory has a greater number of machines ?
46 Republicans and Democrats are sitting at a round table.
More than a half of them are Republicans.
Is it certain that there are two Republicans facing each other?