Nova Press: Set E - Number Theory

Question Name	Average time to answer (seconds)	Total correct answers	Total incorrect answers
Which one of the following numbers is the greatest positive integer x such ... ...	74	19	5
If x, y, and z are consecutive integers in that order, which of the following ... ...	76	20	4
If , then x =	29	23	1
If the sum of two prime numbers x and y is odd, then the product of x and ... ...	68	23	1
If and x and y are integers, then which one of the following must be ... ...	141	18	6
A two-digit even number is such that reversing its digits creates an odd ... ...	103	19	5
Let a, b, and c be three integers, and let a be a perfect square. If a/b ... ...	116	21	3
If n > 2, then the sum, S, of the integers from 1 through n can be calculated ... ...	104	15	9
Which one of the following could be the difference between two numbers ... ...	144	20	4
A number, when divided by 12, gives a remainder of 7. If the same number ... ...	84	22	2