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If the perimeter of the isosceles right triangle is (1+$$\sqrt{2}$$), what is the area of the triangular region?
Give your answer as a fraction.

In the figure, what is the area of triangle ADB given that the area of triangle ACE is 4 and the area of triangle CDE is 3?
Give your answer as a fraction.

Quantity A

$$x+y$$

Quantity B

$$\sqrt{(x^2+y^2)}$$


The diagonal of square A and B is 10 and 20, respectively.
What is the ratio of the area of square A to the area of square B?
Give your answer as a fraction.
Set A={2, 4, 6}

Set B={2, 4, 6, 8, 10, 12}

If Set A is a subset of Set M, while Set M is subset of Set B, then how many ways can Set M be constructed?
Of the people surveyed about the effectiveness of various treatments for insomnia, 65 percent reported that prescription drugs were effective and 48 percent reported that exercise was effective. If 22 percent of those surveyed reported that prescription drugs were effective but did not report that exercise was effective,what percent of those surveyed reported that exercise was effective but did not report that prescription drugs were effective?

_____%
18 students can choose from snack, staple food, vegetables or none for lunch. Each student can choose whatever types of food as they want. Among 12 students who choose vegetables, 3 also choose snack but not staple food, 2 also choose staple food but not snack, while 4 also choose snack and staple food. What's the ratio of students who only choose vegetables to all students?
Give your answer as a fraction.
In a group of people, 40% of like red, 50% of them like blue, while 60% of them like green. 9% of them only like red, 10% only like blue and 11% only like green. 20% of them like all the three colors simultaneously. What percent of people like both red and green, but not blue?
$$a_{1}=1$$, $$a_{2}=1$$, $$a_{n}=0.2a_{n-1}(n≥3)$$

Quantity A

$$a_{6}$$

Quantity B

$$25^{3}(0.2)^{10}$$


A list of numbers could be summarized into $$a_{n}=(-1)^{n+1}*n$$ (n is a positive integer), and $$a_{1}=1$$
What is the sum of $$a_{1}$$, $$a_{2}$$, $$a_{3}$$,...........,$$a_{97}$$, $$a_{98}$$, $$a_{99}$$?
$$a_{1}=2$$,$$a_{2}=5$$
If $$a_{n}=a_{n-1} / a_{n-2}$$,then $$a_{135} =$$?
Give your answer as a fraction.
A positive integer is a palindrome if it reads exactly the same from right to left as it does from left to right. For example, 5 and 66 and 373 are all palindromes. How many palindromes are there between 1 and 1,000, inclusive?
N equals the number of positive 3-digit numbers that contain odd digits only (the same number could be used for more than once).

Quantity A

N

Quantity B

125


Quantity A

The number of 3-digit integers all of whose digits are even (the same number could be used for more than once)

Quantity B

The number of 3-digit integers all of whose digits are odd (the same number could be used for more than once)


A three-digit code for certain locks uses the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 according to the following constraints. The first digit cannot be 0 or 1, the second digit must be 0 or 1, and the second and third digits cannot both be 0 in the same code. How many different codes are possible?

Mark is supposed to fill three sectors of a garden with a selection of five colors of flowers. The same color could be used, but only twice at most, and not adjacent. In how many ways can the garden be decorated?

Quantity A

14!

Quantity B

15!-14!



In a circle, the area of the shaded sector is 16π.

Quantity A

The radius of the circle

Quantity B

5.5


There are two right circular cylinder oil drums. In the first cylinder, the base area is 4π and the oil height is 5, while in the second cylinder, the base area is 10π, and the oil height is 6. Mark gradually pours oil from the second cylinder into the first one, so that the oil height in both cylinders will become the same. What will be the oil height at last?
Give your answer as a fraction.


What is the ratio of the number of people in Group 2 with the ailment sneezing and itchy eyes to the total number of people in both groups with the ailment sneezing and itchy eyes?
Give your answer as a fraction.

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