| |
| |
1. |
There are 9 players on a softball team. How many ways can the coach pick the first 2 batters? |
| |
|
A. |
72 |
B. |
36 |
| |
|
C. |
84 |
D. |
81 |
| |
|
Hint |
|
| |
2. |
How many 3-digit whole numbers can you write using the digits 1, 3, 5, and 7 if no digit can be used twice? |
| |
|
A. |
12 |
B. |
24 |
| |
|
C. |
64 |
D. |
4 |
| |
|
Hint |
|
| |
3. |
A race consists of ten runners. How many ways can the runners finish first, second, and third? |
| |
|
A. |
1,000 |
B. |
504 |
| |
|
C. |
30 |
D. |
720 |
| |
|
Hint |
|
| |
4. |
Consider all of the five-digit numbers that can be formed using the digits 1, 2, 3, 4, and 5 where no digit is used twice. Find the probability that one of these numbers picked at random is between 10,000 and 20,000. |
| |
|
A. |
25% |
B. |
16 % |
| |
|
C. |
33 % |
D. |
20% |
| |
|
Hint |
|
| |
5. |
Consider all of the six-digit numbers that can be formed using the digits 1, 2, 3, 4, 5, and 6 where no digit is used twice. Find the probability that one of these numbers picked at random is between 100,000 and 300,000. |
| |
|
A. |
16% |
B. |
33% |
| |
|
C. |
40% |
D. |
24% |
| |
|
Hint |
|
|
|