| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.41 |
| Score | 0% | 68% |
9 members of a bridal party need transported to a wedding reception but there are only 2 3-passenger taxis available to take them. How many will need to find other transportation?
| 9 | |
| 1 | |
| 5 | |
| 3 |
There are 2 3-passenger taxis available so that's 2 x 3 = 6 total seats. There are 9 people needing transportation leaving 9 - 6 = 3 who will have to find other transportation.
Damon loaned Alex $1,000 at an annual interest rate of 5%. If no payments are made, what is the interest owed on this loan at the end of the first year?
| $90 | |
| $6 | |
| $50 | |
| $28 |
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 $1,000
i = 0.05 x $1,000
i = $50
Solve for \( \frac{5!}{2!} \)
| 60 | |
| \( \frac{1}{6} \) | |
| \( \frac{1}{210} \) | |
| 42 |
A factorial is the product of an integer and all the positive integers below it. To solve a fraction featuring factorials, expand the factorials and cancel out like numbers:
\( \frac{5!}{2!} \)
\( \frac{5 \times 4 \times 3 \times 2 \times 1}{2 \times 1} \)
\( \frac{5 \times 4 \times 3}{1} \)
\( 5 \times 4 \times 3 \)
60
A menswear store is having a sale: "Buy one shirt at full price and get another shirt for 25% off." If Bob buys two shirts, each with a regular price of $22, how much money will he save?
| $3.30 | |
| $9.90 | |
| $1.10 | |
| $5.50 |
By buying two shirts, Bob will save $22 x \( \frac{25}{100} \) = \( \frac{$22 x 25}{100} \) = \( \frac{$550}{100} \) = $5.50 on the second shirt.
A menswear store is having a sale: "Buy one shirt at full price and get another shirt for 25% off." If Roger buys two shirts, each with a regular price of $40, how much will he pay for both shirts?
| $54.00 | |
| $70.00 | |
| $10.00 | |
| $30.00 |
By buying two shirts, Roger will save $40 x \( \frac{25}{100} \) = \( \frac{$40 x 25}{100} \) = \( \frac{$1000}{100} \) = $10.00 on the second shirt.
So, his total cost will be
$40.00 + ($40.00 - $10.00)
$40.00 + $30.00
$70.00