When positive integer x is divided by positive integer y, the remainder is 9.  If ~$\frac{x}{y}$~ = 96.12, what is the value of y?

The table above gives the coffee consumption in 1994 for five countries.  If the total coffee consumption of these countries was 40 percent of the world’s coffee consumption, what was the world’s coffee consumption, in millions of kilograms, in 1994?

A jar contains 16 marbles, of which 4 are red, 3 are blue, and the rest are yellow.  If 2 marbles are to be selected at random from the jar, one at a time without being replaced, what is the probability that the first marble selected will be red and the second marble selected will be blue?

Each signal that a certain ship can make is comprised of 3 different flags hanging vertically in a particular order.  How many unique signals can be made by using 4 different flags?

The function f is defined by ~$f\left ( x \right )=-\frac{1}{x}$~ for all nonzero numbers x.  If ~$f\left ( a \right )=-\frac{1}{2}$~ and ~$f\left ( ab \right )=\frac{1}{6}$~, then b =

A positive integer n is said to be “prime-saturated” if the product of all the different positive prime factors of n is less than the square root of n.  What is the greatest two-digit prime-saturated integer?

June 25, 1982, fell on a Friday.  On which day of the week did June 25, 1987, fall?  (Note: 1984 was a leap year.)

For any positive integer n, the sum of the first n positive integers equals ~$\frac{n\left ( n+1 \right )}{2}$~.  What is the sum of all the even integers between 99 and 301?

If n = 8¹¹ – 8, what is the units digit of n?

Running at their respective constant rates, machine X takes 2 days longer to produce w widgets than machine Y.  At these rates, if the two machines together produce 5/4 w widgets in 3 days, how many days would it take machine X alone to produce 2w widgets?