How Intelligent Are You Quiz
Questions: 16 · 10 minutes
1. A bag contains two red counters and three blue counters. If two counters are drawn without replacement, what is the probability that both are red?
2/5
1/5
1/10
1/4
2. Researchers randomly assign similar participants to sleep for either five or eight hours. Both groups then take the same test, and the eight-hour group scores higher on average. Which conclusion is best supported?
Everyone performs best after exactly eight hours of sleep.
A person’s intelligence is determined mainly by sleep duration.
In this experiment, additional sleep contributed to better average test performance.
The eight-hour group must have received an easier test.
3. A machine produces eight identical parts in six minutes at a constant rate. How long will it take to produce 20 parts?
12 minutes
15 minutes
16 minutes
18 minutes
4. All objects made entirely of copper conduct electricity. An object does not conduct electricity. What follows logically?
Copper objects conduct only some of the time.
The object contains no metal at all.
Every nonconductive object is made of plastic.
The object is not made entirely of copper.
5. A thermometer is to temperature as a compass is to what?
Distance
Direction
Altitude
Speed
6. Opaque is to transparent as scarce is to what?
Hidden
Valuable
Abundant
Limited
7. The average of four test scores is 18. If a fifth score of 27 is added, what is the new average?
18.9
19.8
19
20.25
8. Maya walks three blocks north, four blocks east, and then three blocks south. Where is she relative to her starting point?
Four blocks east
Three blocks south
Back at the starting point
Three blocks north
9. A survey of people leaving a gym finds that 90% exercise at least three times a week. The survey concludes that 90% of all town residents do the same. What is the main flaw?
Gym visitors are unlikely to represent all town residents.
The survey asks participants about exercise.
The sample may contain too many people.
Residents might change their exercise habits in the future.
10. What number comes next in the sequence: 3, 6, 11, 18, 27, ___?
36
37
40
38
11. Some lanterns are metal, and all metal objects conduct electricity. Which statement must be true?
Some lanterns conduct electricity.
Only lanterns conduct electricity.
All lanterns are metal.
No nonmetal lantern can conduct electricity.
12. A bus arrives every 12 minutes and a train arrives every 18 minutes. Both arrive at 9:00 a.m. When will they next arrive at the same time?
9:24 a.m.
9:30 a.m.
9:36 a.m.
9:54 a.m.
13. Which statement is logically equivalent to “No violinists are astronauts”?
Some violinists are not astronauts.
Some astronauts are not violinists.
All musicians are non-astronauts.
No astronauts are violinists.
14. A jacket originally costs $80 and is discounted by 25%. What is its sale price before tax?
$60
$55
$64
$65
15. A security system follows this rule: “If a code is valid, the green light turns on.” You see the green light turn on. What can you conclude from that fact alone?
The entered code is definitely valid.
The entered code is definitely invalid.
The light must be malfunctioning.
The code may be valid, but the light alone does not prove it.
16. A sign says, “Only registered members may use the studio.” Which statement must be true if the rule is followed?
Every registered member uses the studio.
Anyone using the studio is a registered member.
Membership guarantees that the studio is available.
Nonmembers may use the studio when accompanied.