Nova Math - Problem Set A: Substitution

Question Name	Average time to answer (seconds)	Total correct answers	Total incorrect answers
... ...	59	464	79
If x and y are perfect squares, then which of the following is not necessarily ... ...	109	360	152
If y is an even integer and x is an odd integer, which of the following ... ...	121	345	139
If 0 < k < 1, then which of the following must be less than k?	95	307	162
Suppose you begin reading a book on page h and end on page k. If you read ... ...	79	364	95
If m is an even integer, then which of the following is the sum of the ... ...	146	252	193
... ...	46	405	29
Suppose x is divisible by 8 but not by 3. Then which of the following CANNOT ... ...	66	397	36
If p and q are positive integers, how many integers are larger than pq ... ...	169	251	179
If x and y are prime numbers, then which one of the following cannot equal ... ...	128	254	171