| 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** |