Nova Press: Set E - Number Theory

Question Name	Average time to answer (seconds)	Total correct answers	Total incorrect answers
Let x be a two-digit number. If the sum of the digits of x is 9, then the ... ...	98	11	13
39693/3	102	22	1
If is an odd integer, which one of the following expressions is an even ... ...	47	22	1
If the product of two integers is odd, then the sum of those two integers ... ...	122	22	1
If the sum of three consecutive integers is odd, then the first and the ... ...	45	21	2
If l, m, and n are positive integers such that l < m < n and n < ... ...	43	22	0
If two non-zero positive integers p and q are such that p = 4q and p < ... ...	49	22	0
If n is an integer, then which one of the following expressions must be ... ...	91	23	0
The sum of three consecutive positive integers must be divisible by which ... ...	59	24	1