Question rating by month
1	If all the N students of a class are classified into groups of either	1163
2	A car dealership carries only sedans and SUVs	1141
3	In the correctly worked addition problem above, A, B, C, D	1139
4	Train A leaves New York for Boston at 3 PM and travels at	1136
5	The number of elements in set K is an odd number. The minimum value of	1094
6	n and k are positive integers. When n is divided by 23, the quotient i	1093
7	P and Q are prime numbers less than 70. What is the units digit of P*Q	1079
8	If, in the addition problem above, a, b, c, d, e, f, x, y, a	1052
9	A three digit number A with hundreds digit a, tens digit b and units	1048
10	There is a sequence, 4(10^n), 4(10^(n-1)), ..., 4(10^(n-m)), for posit	1038
11	Superfast train A leaves Newcastle for Birmingham at 3 PM and travels	1018
12	If a and b are two-digit positive integers greater than 10	1002
13	Bob and Wendy left home to walk together to a restaurant for	988
14	Julian bought 6 kilograms of cheese from each of Deli A and Deli B. At	973
15	At a certain animal shelter, there are nine dogs available for	955
16	GMAT CLUB OLYMPICS: In a survey of an Olympic team members, 1/6th of	953
17	In the correctly-worked multiplication problem above, each symbol repr	942
18	Set X consists of 9 positive elements. Set Y consists of the	930
19	A certain diet program calls for eating daily calories from	929
20	In a group of 80 college students, how many own a car?	914
21	There are N men in a group. Their average age is 20 years. Find N.	902
22	A certain salesman's yearly income is determined by a base salary plus	899
23	At a particular store, candy bars are normally priced at $1.	892
24	Is x divisible by 39?	886
25	The difference between positive two-digit integer A and the smaller tw	879