Answer:
3/4
pick 1,3,5 (reds) from 1,3,5,7(odd-numbered)
The answer would be 1 million because if the average person lives to be 70 multiply that by 2000 and you get 51100000 so I would say that total is closer to 1 million then it is to 3 billion
There are 10 possible digits.
There are 5 position.
So since we cannot repeat same digital, there is 10 possible digits for first position.
We selected one. Now move to second position. We already selected one digit so now there are 9 possible digits. Just select one.
Now move to third position. Again, we already selected another digit so now there are 8 possible digits for third position.
Repeat until you run out of position.
So that would be 10·9·8·7·6 = 30240
There are 30240 possible codes.
Hope this helps.
A hexagon has 6 sides so we will have to multiply one of the sides by 6.
18.75<span>×6=112.5
Your answer will be B (112.5)</span>
