| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.07 |
| Score | 0% | 61% |
If there were a total of 50 raffle tickets sold and you bought 4 tickets, what's the probability that you'll win the raffle?
| 18% | |
| 10% | |
| 12% | |
| 9% |
You have 4 out of the total of 50 raffle tickets sold so you have a (\( \frac{4}{50} \)) x 100 = \( \frac{4 \times 100}{50} \) = \( \frac{400}{50} \) = 9% chance to win the raffle.
A triathlon course includes a 400m swim, a 50.8km bike ride, and a 9.600000000000001km run. What is the total length of the race course?
| 60.1km | |
| 60.8km | |
| 48.1km | |
| 59.7km |
To add these distances, they must share the same unit so first you need to first convert the swim distance from meters (m) to kilometers (km) before adding it to the bike and run distances which are already in km. To convert 400 meters to kilometers, divide the distance by 1000 to get 0.4km then add the remaining distances:
total distance = swim + bike + run
total distance = 0.4km + 50.8km + 9.600000000000001km
total distance = 60.8km
A menswear store is having a sale: "Buy one shirt at full price and get another shirt for 45% off." If Roger buys two shirts, each with a regular price of $49, how much money will he save?
| $22.05 | |
| $7.35 | |
| $19.60 | |
| $2.45 |
By buying two shirts, Roger will save $49 x \( \frac{45}{100} \) = \( \frac{$49 x 45}{100} \) = \( \frac{$2205}{100} \) = $22.05 on the second shirt.
Solve 2 + (3 + 5) ÷ 5 x 5 - 42
| \(\frac{4}{9}\) | |
| 3\(\frac{1}{2}\) | |
| -6 | |
| 2\(\frac{1}{2}\) |
Use PEMDAS (Parentheses, Exponents, Multipy/Divide, Add/Subtract):
2 + (3 + 5) ÷ 5 x 5 - 42
P: 2 + (8) ÷ 5 x 5 - 42
E: 2 + 8 ÷ 5 x 5 - 16
MD: 2 + \( \frac{8}{5} \) x 5 - 16
MD: 2 + \( \frac{40}{5} \) - 16
AS: \( \frac{10}{5} \) + \( \frac{40}{5} \) - 16
AS: \( \frac{50}{5} \) - 16
AS: \( \frac{50 - 80}{5} \)
\( \frac{-30}{5} \)
-6
A tiger in a zoo has consumed 24 pounds of food in 3 days. If the tiger continues to eat at the same rate, in how many more days will its total food consumtion be 72 pounds?
| 7 | |
| 6 | |
| 4 | |
| 2 |
If the tiger has consumed 24 pounds of food in 3 days that's \( \frac{24}{3} \) = 8 pounds of food per day. The tiger needs to consume 72 - 24 = 48 more pounds of food to reach 72 pounds total. At 8 pounds of food per day that's \( \frac{48}{8} \) = 6 more days.