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Both m and n are primes, m < n, and m+n is an odd number

Quantity A

m

Quantity B

3


The number of children in a family is a prime number and is less than 10. If there are one more boys than girls and both the number of boys and girls are primes, then how many children does the family have?
f(100)=the product of all the even integers from 2 to 100, inclusive

Quantity A

40

Quantity B

The largest prime factor of f(100)


P is a prime number

Quantity A

The sum of all prime factors of 5*P

Quantity B

The sum of all prime factors of 6*P


What is the greatest prime factor of $$79^{2}$$-$$50^{2}$$?
$$d$$ is the greatest common divisor of 36 and 60, $$m$$ is the least common multiple of 36 and 60.

Quantity A

$$\frac{36}{d}$$

Quantity B

$$\frac{m}{60}$$


Two librarians, Robert and Patricia,cataloged a combined total of 180 new books,each of which was cataloged by only one of the two librarians. Although they spent the same amount of time cataloging their books, Robert spent an average of 15 minutes per book whereas Patricia spent an average of 12 minutes per book.

Quantity A

The number of books cataloged by Robert

Quantity B

60



△DEF is a right isosceles triangle with area of 1, ∠E=90°. Square Y is inscribed in the triangle, what is the area of △ABE?fraction.

R and r are two radii of the larger and smaller circle, respectively, if the ratio of R to r is 3. The shaded region is what percentage of the larger circle?
Give your answer as a fraction.


In the following number line, |x-y|=|z-y| (x < z).

Quantity A

$$\frac{x+z}{2}$$

Quantity B

y


When Mark carries a speed tester for feet, he moves 93 feet per minute; when Mark carries a speed tester for hands, he moves 90 feet per minute. In how many seconds will he moves on feet 0.25 feet more than he moves on hands? _____seconds
A, M and B are three train stations. M is somewhere between A and B. Two trucks start off from A and B station at the same time. The truck starting from station A travels at 60 miles per hour, while the truck from station B travels at 40 miles per hour. They arrive at station M at the same time. What is the ratio of the distance from station A to station M to the distance from station M to station B?

Give your answer with fraction.
How many different points (x, y), where x and y are both positive integers, in xy-plane satisfy the inequality x+y ≤ 200?
A point A (3s, 2s-3) is on the line y=-x-4, what is the value of s?

Give your answer as a fraction.
In the $$xy$$-plane, the slope of line $$l$$ is $$p$$, the slope of line $$n$$ is $$q$$, the $$y$$-intercept of line $$l$$ is $$f$$, and the $$y$$-intercept of line $$n$$ is $$j$$. $$0 \lt q \lt p$$, $$0 \lt f \lt j$$.

Quantity A

The $$x$$-intercept of line $$l$$

Quantity B

The $$x$$-intercept of line $$n$$


What's the number of integers that are neither multiple of 3 nor multiple of 7 from 1 to 1000, inclusive?
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.
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?
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.

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