question: The measure of the side of a square is multiplied by 5. If x represents the perimeter of the original square, what is the value of the new perimeter?
Options:
(A) 3x
(B) 4x
(C) 5x
(D) 12x
(E) 27x
answer: Stream of consciousness: Original perimeter = x
Hence original side = x/4
New side = 5x/4
New perimeter = 4*5x/4 = 5x The answer is (C).

q: From group of 15 cricket players a team of 11 players is to be chosen. How many ways this can be done?
Options:
(A) 3252
(B) 1365
(C) 5325
(D) 1432
(E) 1324
a: Stream of consciousness: 11 players are to be chosen from 15 players. This can be done in 15C11 ways. ie) 15!/11!x4! = 1365 ways. Ans: The answer is (B).

question: Find the product of the localvalue and absolutevalue of 4 in 20468?
Options:
(A) 1000
(B) 1100
(C) 1200
(D) 1300
(E) 1600
answer: Stream of consciousness: Local value of 4 = 4 x 100 = 400
Place value of 4 = 4
There fore = 4 x 400 = 1600 The answer is (E).

q: Which of the following is equal to (x-1)!/(x-2)!?
Options:
(A) x-1
(B) 1+(1/x)
(C) 1
(D) x+1
(E) x-1
a: Stream of consciousness: (x - 1)! = (x - 2)! * (x-1)
(x - 1)!/(x-2)! = x - 1 The answer is (E).

question: The average of 11 results is 40, if the average of first five results is 49 and that of the last seven is 52. Find the fifth result?
Options:
(A) 165
(B) 166
(C) 167
(D) 168
(E) 169
answer: Stream of consciousness: 1 to 11 = 11 * 40 = 440
1 to 5 = 5 * 49 = 245
5 to 11 = 7 * 52 = 364
5th = 245 + 364 440 = 169 The answer is (E).

question: A train 510 m long is running at a speed of 45 km/hr. In what time will it pass a bridge 140 m long?
Options:
(A) 40
(B) 52
(C) 26
(D) 21
(E) 14
answer:
Stream of consciousness: Speed = 45 * 5/18 = 25/2 m/sec
Total distance covered = 510 + 140 = 650 m
Required time = 650 * 2/25 = 52 sec The answer is (B).