Question rating by month 1 Train A leaves New York for Boston at 3 PM and travels at 1180 2 In the correctly worked addition problem above, A, B, C, D 1178 3 w, x, y, and z are integers. If w > x > y > z > 0, is y a common 1178 4 What is the perimeter of PQRS ? (1) x = 30 degree (2) w= 45 degree 1177 5 A car dealership carries only sedans and SUVs 1169 6 If all the N students of a class are classified into groups of either 1167 7 If n is a prime number greater than 2, is 1/x > 1? 1163 8 n and k are positive integers. When n is divided by 23, the quotient i 1146 9 If k is an integer and x(x – k) = k + 1, what is the value of x? 1133 10 If, in the addition problem above, a, b, c, d, e, f, x, y, a 1110 11 When 120 is divided by positive single-digit integer m the remainder 1103 12 Julian bought 6 kilograms of cheese from each of Deli A and Deli B. At 1103 13 For integers a and b, if (a^3 a^2 b)^1/2 = 7, what is the 1101 14 The average (arithmetic mean) of 5 distinct, single digit integers is 1088 15 Abe, Beth, Carl and Duncan are four siblings, among which Abe and Carl 1079 16 If 20 Swiss Francs is enough to buy 9 notebooks and 3 pencils, is 40 1077 17 Bob and Wendy left home to walk together to a restaurant for 1074 18 P and Q are prime numbers less than 70. What is the units digit of P*Q 1059 19 There is a sequence, 4(10^n), 4(10^(n-1)), ..., 4(10^(n-m)), for posit 1058 20 W, X, Y, and Z represent distinct digits such that WX * YZ = 1995. Wha 1040 21 A newer machine, working alone at its constant rate 1030 22 In the picture, quadrilateral ABCD is a parallelogram and 1029 23 Three employees, A, B and C, clean a certain conference room each day. 1025 24 w, x, y, and z are integers. If z > y > x > w, is |w| > x^2 1021 25 If x, y and z are positive integers such that x^4*y^3 = z^2 1014