| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.10 |
| Score | 0% | 62% |
Find the average of the following numbers: 10, 4, 8, 6.
| 3 | |
| 7 | |
| 8 | |
| 9 |
To find the average of these 4 numbers add them together then divide by 4:
\( \frac{10 + 4 + 8 + 6}{4} \) = \( \frac{28}{4} \) = 7
Roger loaned Jennifer $400 at an annual interest rate of 5%. If no payments are made, what is the total amount owed at the end of the first year?
| $412 | |
| $424 | |
| $408 | |
| $420 |
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 $400
i = 0.05 x $400
No payments were made so the total amount due is the original amount + the accumulated interest:
total = $400 + $20How many 1 gallon cans worth of fuel would you need to pour into an empty 10 gallon tank to fill it exactly halfway?
| 5 | |
| 4 | |
| 10 | |
| 8 |
To fill a 10 gallon tank exactly halfway you'll need 5 gallons of fuel. Each fuel can holds 1 gallons so:
cans = \( \frac{5 \text{ gallons}}{1 \text{ gallons}} \) = 5
A menswear store is having a sale: "Buy one shirt at full price and get another shirt for 5% off." If Ezra buys two shirts, each with a regular price of $12, how much will he pay for both shirts?
| $23.40 | |
| $11.40 | |
| $0.60 | |
| $17.40 |
By buying two shirts, Ezra will save $12 x \( \frac{5}{100} \) = \( \frac{$12 x 5}{100} \) = \( \frac{$60}{100} \) = $0.60 on the second shirt.
So, his total cost will be
$12.00 + ($12.00 - $0.60)
$12.00 + $11.40
$23.40
April scored 93% on her final exam. If each question was worth 2 points and there were 160 possible points on the exam, how many questions did April answer correctly?
| 74 | |
| 69 | |
| 64 | |
| 67 |
April scored 93% on the test meaning she earned 93% of the possible points on the test. There were 160 possible points on the test so she earned 160 x 0.93 = 148 points. Each question is worth 2 points so she got \( \frac{148}{2} \) = 74 questions right.