Q: M is 30% of Q, Q is 20% of P and N is 50% of P. What is M / N
Options:
(A) 3/28
(B) 3/27
(C) 3/21
(D) 3/22
(E) 3/25
A: OK... Stream of consciousness: Take P = 100, then N = 50, Q = 20, M = 6. So M/N = 3/25
The answer is (E).

Q: A certain league has three divisions. The respective divisions had 10, 12 and 15 teams qualify for the playoffs. Each division held its own double-elimination tournament -- where a team is eliminated from the tournament upon losing two games -- in order to determine its champion. The four division champions then played in a single-elimination tournament -- where a team is eliminated upon losing one game -- in order to determine the overall league champion. Assuming that there were no ties and no forfeits, what is the maximum number of games that could have been played in order to determine the overall league champion?
Options:
(A) 70
(B) 72
(C) 73
(D) 78
(E) 80
A: OK... Stream of consciousness: Overall, there can be 73 minuses. Tus, it is
The answer is (C).

Q: 1500 is increased by 20%. Find the final number.
Options:
(A) 1500
(B) 1800.
(C) 1900
(D) 1700
(E) 1660
A: OK... Stream of consciousness: Final number = Initial number + 20%(original number) = 1500 + 20%(1500) = 1500 + 300 = 1800.
The answer is (B).

Q: If 15% of 40 is greater than 25% of a number by 2,then find the number is?
Options:
(A) 20
(B) 15
(C) 16
(D) 25
(E) 30
A:
OK... Stream of consciousness: 15/100 * 40 - 25/100 * x = 2 or x/4 = 4 so x = 16
The answer is (C).