The purchase price of an article is $48. In order to include 15% of cost for overhead and to provide $12 of net profit, the markup should be
Options:
(A) 15%
(B) 25%
(C) 35%
(D) 40%
(E) 45%
Answer and stream of consciousness: (D)
Stream of consciousness: Cost price of article = 48$
% of overhead cost = 15
Net profit = 12 $
We need to calculate % markup
Net profit as % of cost price = (12/48)*100 = 25%
Total markup should be = 25 + 15 = 40%

The average of 15 result is 60. Average of the first 10 of them is 10 and that of the last 10 is 80. Find the 8th result?
Options:
(A) 35
(B) 200
(C) 150
(D) 250
(E) 300
Answer and stream of consciousness: (B)
Stream of consciousness: Sum of all the 13 results = 15 * 60 = 900
Sum of the first 7 of them = 10 * 10 = 100
Sum of the last 7 of them = 10 * 80 = 800
So, the 8th number = 900 + 100 - 800 = 200.

There are 100 employees in a room. 99% are President. How many managers must leave the room to bring down the percentage of President to 98%?
Options:
(A) 1
(B) 2
(C) 46
(D) 50
(E) 97
Answer and stream of consciousness: (B)
Stream of consciousness: We have 99 Presidents and 1 director. That 1 director to compose 2% of the total number of people, there must be 50 people in the room, hence 50 Presidents must leave.

John makes $50 a week from his job. He earns a raise andnow makes $75 a week. What is the % increase?
Options:
(A) 15%
(B) 16.66%
(C) 50%
(D) 19%
(E) 21%
Answer and stream of consciousness:
(C)
Stream of consciousness: Increase = (25/50)*100 = (1/2)*100 = 50%.