بالله ضرووووووري سؤالين احصاء..(

[roodi11]

السلام عليكم

يا جماعه عندي سؤالين والله حايس فيهم اللي متأكد ياليت يجاوبني

A student and a professor each choose a number between 83 and 85 (83 and 85 are both possible choices). What is the probability that the two choose the same number?


A store manager has 4 distinctive toothpastes, 2 distinctive toothbrushes and 3 distinctive mouthwashes and would like to arrange all of them in order on a shelf. In how many different ways can they be arranged?

الله يسعد اللي يجاوبني يارب ويجيب فل مارك :