Respuesta :
There are 6 ways to enter and 5 ways to leave once you pick a specific door to enter (in which you cannot re-use to exit). So overall there are 6*5 = 30 different permutations to pick from
Answer: Choice C) 30
Note: you can use the nPr formula with n = 6 and r = 2 to get the same answer
Alternatively, you can use a probability tree to map out all the possibilities though such a tree with 30 branches may take a while to draw out
Answer: Choice C) 30
Note: you can use the nPr formula with n = 6 and r = 2 to get the same answer
Alternatively, you can use a probability tree to map out all the possibilities though such a tree with 30 branches may take a while to draw out
