| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.88 |
| Score | 0% | 58% |
A menswear store is having a sale: "Buy one shirt at full price and get another shirt for 40% off." If Frank buys two shirts, each with a regular price of $48, how much will he pay for both shirts?
| $64.80 | |
| $28.80 | |
| $72.00 | |
| $76.80 |
By buying two shirts, Frank will save $48 x \( \frac{40}{100} \) = \( \frac{$48 x 40}{100} \) = \( \frac{$1920}{100} \) = $19.20 on the second shirt.
So, his total cost will be
$48.00 + ($48.00 - $19.20)
$48.00 + $28.80
$76.80
If a car travels 60 miles in 1 hour, what is the average speed?
| 65 mph | |
| 15 mph | |
| 60 mph | |
| 45 mph |
Average speed in miles per hour is the number of miles traveled divided by the number of hours:
speed = \( \frac{\text{distance}}{\text{time}} \)
| 0.6 | |
| 1.6 | |
| 1.8 | |
| 1 |
1
How many 1\(\frac{1}{2}\) gallon cans worth of fuel would you need to pour into an empty 6 gallon tank to fill it exactly halfway?
| 4 | |
| 8 | |
| 2 | |
| 5 |
To fill a 6 gallon tank exactly halfway you'll need 3 gallons of fuel. Each fuel can holds 1\(\frac{1}{2}\) gallons so:
cans = \( \frac{3 \text{ gallons}}{1\frac{1}{2} \text{ gallons}} \) = 2
Cooks are needed to prepare for a large party. Each cook can bake either 4 large cakes or 15 small cakes per hour. The kitchen is available for 4 hours and 21 large cakes and 410 small cakes need to be baked.
How many cooks are required to bake the required number of cakes during the time the kitchen is available?
| 9 | |
| 11 | |
| 14 | |
| 15 |
If a single cook can bake 4 large cakes per hour and the kitchen is available for 4 hours, a single cook can bake 4 x 4 = 16 large cakes during that time. 21 large cakes are needed for the party so \( \frac{21}{16} \) = 1\(\frac{5}{16}\) cooks are needed to bake the required number of large cakes.
If a single cook can bake 15 small cakes per hour and the kitchen is available for 4 hours, a single cook can bake 15 x 4 = 60 small cakes during that time. 410 small cakes are needed for the party so \( \frac{410}{60} \) = 6\(\frac{5}{6}\) cooks are needed to bake the required number of small cakes.
Because you can't employ a fractional cook, round the number of cooks needed for each type of cake up to the next whole number resulting in 2 + 7 = 9 cooks.