Logical Reasoning

Having an efficient, attractive subway system makes good economic sense. So, the city needs to purchase new subway cars, since the city should always do what makes good economic sense.

The conclusion drawn above follows logically if which one of the following is assumed?

(A) The city should invest in an efficient, attractive subway system.
(B) Cost-effective subway cars are an integral part of an efficient subway system.
(C) Investment in new subway cars make better economic sense than many of the other investment options open to the city.
(D) New subway cars are easily affordable.
(E) New subway cars are required in order for the city to have a subway system that is efficient and attractive.

Logic Games

Six racehorses – K, L, M, N, O, and P – will be assigned to six positions arranged in a straight line and numbered consecutively 1 through 6. The horses are assigned to the positions, one horse per position, according to the following conditions:

  • K and L must be assigned to positions that are separated from each other by exactly one position.
  • K and N cannot be assigned to positions that are next to each other.
  • N must be assigned to a higher-numbered position than M.
  • P must be assigned to position 3.

Which one of the following lists an acceptable assignment of horses to positions 1 through 6, respectively?

(A) K, L, P, M, N, O
(B) M, K, P, L, N, O
(C) M, N, K, P, L, O
(D) N, O, P, K, M, L
(E) O, M, P, L, N, K

Which of the following CANNOT be true?

(A) K is assigned to position 2.
(B) L is assigned to position 2.
(C) M is assigned to position 1.
(D) M is assigned to position 5.
(E) O is assigned to position 2.