Answer:
1/4669920
Step-by-step explanation:
First if all, when repetition is mot allowed, we use Permutation to get the number of possible outcomes as follows;
P(n, r) = n!/(n - r)!
Now, the order is important since the first, second, third and fourth prizes are different.
Thus, we need to define the Permutation.
We need to select 4 winners of the 48 people.
Thus, n = 48 and r = 4
Thus;
P(48,4) = 48!/(48 - 4)!
P(48,4) = 4669920
Now, probability is the number of favourable outcomes divided by number of possible outcomes
Thus,
Probability = 1/4669920
Answer:
90
54
Step-by-step explanation:
Answer The answer is c.
Step-by-step explanation:
cause i said it was
Answer:
they are directly proportional
so
5/22*7=1.59
he would finish in 1.59 min