| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.70 |
| Score | 0% | 74% |
Which of these numbers is a factor of 36?
| 27 | |
| 3 | |
| 40 | |
| 13 |
The factors of a number are all positive integers that divide evenly into the number. The factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, 36.
4! = ?
4 x 3 |
|
5 x 4 x 3 x 2 x 1 |
|
4 x 3 x 2 x 1 |
|
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.
Find the average of the following numbers: 15, 11, 15, 11.
| 13 | |
| 10 | |
| 11 | |
| 16 |
To find the average of these 4 numbers add them together then divide by 4:
\( \frac{15 + 11 + 15 + 11}{4} \) = \( \frac{52}{4} \) = 13
Jennifer scored 94% on her final exam. If each question was worth 3 points and there were 240 possible points on the exam, how many questions did Jennifer answer correctly?
| 67 | |
| 61 | |
| 75 | |
| 84 |
Jennifer scored 94% on the test meaning she earned 94% of the possible points on the test. There were 240 possible points on the test so she earned 240 x 0.94 = 225 points. Each question is worth 3 points so she got \( \frac{225}{3} \) = 75 questions right.
If a car travels 30 miles in 1 hour, what is the average speed?
| 30 mph | |
| 15 mph | |
| 45 mph | |
| 35 mph |
Average speed in miles per hour is the number of miles traveled divided by the number of hours:
speed = \( \frac{\text{distance}}{\text{time}} \)