| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.51 |
| Score | 0% | 70% |
Which of the following is not a prime number?
7 |
|
5 |
|
2 |
|
9 |
A prime number is an integer greater than 1 that has no factors other than 1 and itself. Examples of prime numbers include 2, 3, 5, 7, and 11.
What is the next number in this sequence: 1, 4, 7, 10, 13, __________ ?
| 11 | |
| 16 | |
| 9 | |
| 12 |
The equation for this sequence is:
an = an-1 + 3
where n is the term's order in the sequence, an is the value of the term, and an-1 is the value of the term before an. This makes the next number:
a6 = a5 + 3
a6 = 13 + 3
a6 = 16
If the ratio of home fans to visiting fans in a crowd is 4:1 and all 43,000 seats in a stadium are filled, how many home fans are in attendance?
| 26,000 | |
| 34,400 | |
| 33,333 | |
| 22,500 |
A ratio of 4:1 means that there are 4 home fans for every one visiting fan. So, of every 5 fans, 4 are home fans and \( \frac{4}{5} \) of every fan in the stadium is a home fan:
43,000 fans x \( \frac{4}{5} \) = \( \frac{172000}{5} \) = 34,400 fans.
11 members of a bridal party need transported to a wedding reception but there are only 3 2-passenger taxis available to take them. How many will need to find other transportation?
| 2 | |
| 3 | |
| 5 | |
| 8 |
There are 3 2-passenger taxis available so that's 3 x 2 = 6 total seats. There are 11 people needing transportation leaving 11 - 6 = 5 who will have to find other transportation.
What is 9x7 - 5x7?
| -4x-7 | |
| 14x7 | |
| 4x7 | |
| 14x-14 |
To add or subtract terms with exponents, both the base and the exponent must be the same. In this case they are so subtract the coefficients and retain the base and exponent:
9x7 - 5x7
(9 - 5)x7
4x7