| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.52 |
| Score | 0% | 70% |
Charlie loaned Monica $300 at an annual interest rate of 9%. If no payments are made, what is the total amount owed at the end of the first year?
| $327 | |
| $324 | |
| $303 | |
| $312 |
The yearly interest charged on this loan is the annual interest rate multiplied by the amount borrowed:
interest = annual interest rate x loan amount
i = (\( \frac{6}{100} \)) x $300
i = 0.09 x $300
No payments were made so the total amount due is the original amount + the accumulated interest:
total = $300 + $274! = ?
3 x 2 x 1 |
|
4 x 3 x 2 x 1 |
|
4 x 3 |
|
5 x 4 x 3 x 2 x 1 |
A factorial has the form n! and is the product of the integer (n) and all the positive integers below it. For example, 5! = 5 x 4 x 3 x 2 x 1 = 120.
If there were a total of 200 raffle tickets sold and you bought 16 tickets, what's the probability that you'll win the raffle?
| 9% | |
| 6% | |
| 15% | |
| 8% |
You have 16 out of the total of 200 raffle tickets sold so you have a (\( \frac{16}{200} \)) x 100 = \( \frac{16 \times 100}{200} \) = \( \frac{1600}{200} \) = 8% chance to win the raffle.
If the ratio of home fans to visiting fans in a crowd is 3:1 and all 40,000 seats in a stadium are filled, how many home fans are in attendance?
| 26,667 | |
| 30,000 | |
| 32,800 | |
| 40,000 |
A ratio of 3:1 means that there are 3 home fans for every one visiting fan. So, of every 4 fans, 3 are home fans and \( \frac{3}{4} \) of every fan in the stadium is a home fan:
40,000 fans x \( \frac{3}{4} \) = \( \frac{120000}{4} \) = 30,000 fans.
How many hours does it take a car to travel 450 miles at an average speed of 50 miles per hour?
| 9 hours | |
| 1 hour | |
| 7 hours | |
| 3 hours |
Average speed in miles per hour is the number of miles traveled divided by the number of hours:
speed = \( \frac{\text{distance}}{\text{time}} \)Solving for time:
time = \( \frac{\text{distance}}{\text{speed}} \)
time = \( \frac{450mi}{50mph} \)
9 hours