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The two circles have centers at B and C, respectively, and are mutually tangent. Each circle has radius r.

Quantity A

The perimeter of quadrilateral ABCD

Quantity B

8r


In a list of 350 different positive integers, 70 percent of the integers are less than 500, and the least integer is x.

Quantity A

The greatest possible value of x

Quantity B

255


List A consists of the numbers 18, 19, 19, 19, and 20, and

List B consists of the numbers 11, 12-x, 12, 12+x, and 13, where x > 0.

Quantity A

The standard deviation of the numbers in list A

Quantity B

The standard deviation of the numbers in list B


Sets P and Q each contain 50 numbers, and the greatest number in P is less than the least number in Q. The range of the numbers in P is x, and the range of thenumbers in Q is y. Set R is the union of sets P and Q.

Quantity A

The range of the numbers in R

Quantity B

x+y


The unit price for tablecloths at a certain store is $0.015 per square inch. At this rate, what is the total price at the store for a tablecloth with an area of 20 square feet? (1 foot=12 inches)

$_____
The four letters w, x, y, z are to be randomly sequenced.

Quantity A

The probability that w will precede x in the sequence

Quantity B

$$\frac{1}{2}$$


x is $$\frac{1}{2}$$ of y.

Quantity A

x

Quantity B

y


A certain candle store has 1,000 unscented candles, 1,000 blue candles, and 2,000 white candles in stock. Of the blue candles, 75 percent are scented, and of the white candles, 85 percent are scented. If a customer buys all the unscented blue candles and all the unscented white candles, how many unscented candles will remain in stock?
$$d_1, d_2$$, and $$d_3$$ are nonzero digits. $$S$$ is the sum of the three 3-digit positive integers $$d_1d_2d_3, d_2d_3d_1$$, and $$d_3d_1d_2$$. For example, if $$d_1, d_2$$, and $$d_3$$ are 2, 4, and 7, respectively, then S=247+472+724=1,443.

Quantity A

S

Quantity B

111($$d_1+d_2+d_3$$)


The sequence shown is defined by $$Q_1=6$$ and $$Q_{n+1}=\frac{1}{3}Q_n$$, for each positive integer n.

$$Q_1, Q_2, Q_3, ......, Q_n,.....$$

Quantity A

$$Q_{11}$$

Quantity B

$$(3^{17})Q_{28}$$


When the positive integer m is divided by 42, the remainder is 13. What is the remainder when m is divided by 6?
$$n \gt 0$$

Quantity A

$$\frac{n+1}{n+2}$$

Quantity B

$$\frac{1}{2}$$


List R: 2, 4, 7, 10, 12

List T: 2, 5, 7, 9, 12

Quantity A

The standard deviation of the numbers in list R

Quantity B

The standard deviation of the numbers in list T


For which of the following lists is the standard deviation of the numbers in that list greater than the standard deviation of the numbers 0, 10, 20, 30, and 40?


Quantity A

The standard deviation of the distribution of X

Quantity B

The standard deviation of the distribution of Y


Examinees who received a score of 6 or more passed the test. Which of the following is closest to the average (arithmetic mean) score of the examinees who passed the test?
In a certain corporation,an employee council will consist of 3 employees who will be selected from 20 eligible employees. If each of the 3 positions on the council has a different role on the council,then there are 6,840 possible 3-employee selections from the 20 eligible employees. How many possible 3-employee selections are there if the 3 positions all have the same role?
In a group of 10 people, exactly 4 are vegetarians. A committee of 3 will be formed by randomly selecting 3 people from the group. How many of the possible 3-member committees would include exactly 2 vegetarian members?
A number is to be selected at random from the integers from 100 through 999.

Quantity A

The probability that exactly two adjacent digits of the number selected will be the same

Quantity B

$$\frac{1}{5}$$


Of the 7 guests at a party, 3 are close friends of the host and 4 are acquaintances of the host. At the end of the party,the host will randomly select 2 different guests to win prizes. What is the probability that both of the prizewinners will be among the 3 close friends of the host?

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