q: In Sam's hanger there are 23 boxes, 16 out of the boxes are filled with toys and the rest are filled with electrical appliances. 8 boxes are for sale, 5 of them are filled with toys. How many boxes with electrical appliances are in Sam's hanger that is not for sale?
Options:
(A) 1.
(B) 2
(C) 3
(D) 4
(E) 5
a: Stream of consciousness: Total boxes = 23
Filled with toys = 16
Filled with appliance = 7
Total boxes for sale = 8
Toy boxes for sale = 5
Appliance boxes for sale = 3
Appliance boxes not for sale = 7 - 3 = 4 The answer is (D).

question: A train running at the speed of 60 km/hr crosses a pole in 12 sec. What is the length of the train?
Options:
(A) 120 m
(B) 200 m
(C) 324 m
(D) Cannot be determined
(E) None of these
answer: Stream of consciousness: Speed = 60 * 5/18 = 50/3 m/sec
Length of the train = speed * time = 50/3 * 12 = 200 m The answer is (B).

q: Find the wrong number below mentioned series
11,150,280,560,800
Options:
(A) 800
(B) 560
(C) 280
(D) 150
(E) 11
a: Stream of consciousness: 11 is the only prime number or odd number in the series. The answer is (E).

question: How many factors does 49^2 have?
Options:
(A) 2
(B) 8
(C) 24
(D) 25
(E) 36
answer: Stream of consciousness: 36^2 = 6*6*6*6 = 2^4*3^4
Total factors = (4+1)*(4+1) = 6*6 = 36 The answer is (E).

q: 100 white and black tiles will be used to form a 20x20 square pattern. If there must be at least one black tile in every row and at least one white tile in every column, what is the maximum difference between the number of black and white tiles that can be used?
Options:
(A) 75
(B) 80
(C) 85
(D) 70
(E) 95
a: Stream of consciousness: Answer = D
Please refer diagram below
80 - 10 = 70 The answer is (D).

q: There is a square with side 'a' and one octagon is inscribed in it. What will be perimeter of octagon.
Options:
(A) 8a/3
(B) 7a/3
(C) 5a/3
(D) a/3
(E) 11a/3
a:
Stream of consciousness: Well if it's a regular octagon then it actually trisects each side of the square in which 1/3 of the lenght of the side of the square is the length of one side of the octagon. If any one has a doubt he can draw the figure and see it
Going this way lenght of a side of a octagon is a/3 and thus perimeter would be 8a/3. The answer is (A).