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80% of all polygons are hexagon, and 20% of these hexagons are regular hexagons.

Quantity A

The percent of polygons that are neither hexagons nor regular polygons

Quantity B

16%


Among 60 students, 30 selected Course A, 50 selected Course B. What`s the greatest possible number of students who selected both courses?
In a class, there are 3/4 of people taking chemistry class, and there are 5/6 of people taking biology class. It is possible that a student takes neither of them. What is the minimum ratio of people taking both these classes?
Give your answer as a fraction.
500 respondents are asked two questions each and could answer only yes and no. 440 respondents said yes to the first question. 220 respondents said yes to the second question. At least how many respondents said yes to both questions?
Brad and Paula were each given a copy of the same list of 20 songs, and they were asked to mark the songs that they liked. Brad marked 15 songs and Paula marked 12 songs. Which of the following CANNOT be the number of songs that they both marked?
In a company, $$\frac{1}{3}$$ of employees are female, $$\frac{1}{2}$$ of employees have college degrees.

Quantity A

The percentage of female employees who also have college degrees among all employees

Quantity B

$$\frac{1}{6}$$


There are 210 students in a class. 160 of them take physics, 80 of them take chemistry, and 60 of them take biology. Each student has to take at least one courses. but cannot take all the three classes simultaneously. The number of students who take two classes is what percent of all the students?
Give your answer as a fraction.
Dr. Mosher call the roll ten days in a row. If Candy attended 8 times, Sam attended 7 times, and Amy attended 6 times. If they show in class simultaneously in only one day, and at least 1 student attend each day`s course, how many days in which exactly two of them attended?
In a sequence, for any integer n greater than 1, $$a_n$$ is greater than its preceding term by 3 and $$a_{17}$$ is 55.

Quantity A

$$a_{98}$$

Quantity B

300


What is the value of 6+12+18+24+-+294+300, where each term is a multiple of 6?
The number of bacteria in culture A doubles every 2 hours, and the number of bacteria in culture B increases by 50 percent every hour. At 8:00 in the morning the number of bacteria in each of the two cultures is 5,000..

Quantity A

The number of bacteria in culture A at 2:00 that afternoon

Quantity B

The number of bacteria in culture B at 2:00 that afternoon


In a sequence, $$r_{1}=1$$, $$r_{n}=(\frac{1}{5})*r_{n-1}$$ , where n is any integer greater than 1.

Quantity A

$$r_{5}$$

Quantity B

$$625*r_{10}$$


The height a plant every day increased by $$\frac{1}{2}$$ than that of the preceding day. What is the ratio of the overall height in the fourth day to that of the seventh day? Give your answer as a fraction.
At 12:55 in the afternoon,there are 250 people in a certain stadium for a game scheduled to begin at 2:15 in the afternoon.If the number of people in the stadium will double every 20 minutes until the game is scheduled to start, how many people will be in the stadium at the time the game is scheduled to start?
In a sequence, $$a_{1}=2$$, $$a_{2}=4$$, $$a_{3}=14$$, $$a_{4}=64$$, $$a_{n}= d*a_{n-1}-c$$ What is the value of c+d?
In a sequence, $$a_{1}$$=1, for any integer n greater than 1, $$a_{n}$$ is 12 times the square of its preceding term. If $$a_{5}$$=$$12^{n}$$, then what is the value of n?
In a sequence, $$S_{1}$$=1, for any integer n greater than 1, $$S_{n}=6nS_{1}$$, what is the value of $$S_{1}+ S_{2}$$ + ...+ 300?
$$a_{1}=6$$
$$a_{n}=a_{n-1}+2$$, where n is an even integer
$$a_{n}=a_{n-1}-8$$, where n is an odd integer

Quantity A

$$a_{7}$$

Quantity B

-12


A computer identification code on a certain machine consists of 2 letters from an alphabet of 26 letters, followed by 2 digits from the digits 0 to 9. The two digits must be different. How many identification codes are possible?
Joe remembers the first 8 digits of a 10-digit telephone number. If he uses the digits he remembers,what is the maximum number of telephone numbers that he may have to enter in order to reach the correct telephone number?

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