q: In an office, 20 percent of the workers have at least 5 years of service, and a total of 16 workers have at least 10 years of service. If 90 percent of the workers have fewer than 10 years of service, how many of the workers have at least 5 but fewer than 10 years of service?
Options:
(A) 32
(B) 64
(C) 50
(D) 144
(E) 160
a: Stream of consciousness: (10/100)Workers = 16 = > number of workers = 160
(20/100)*Workers = x+16 = > x = 32 The answer is (A).

question: John makes $50 a week from his job. He earns a raise and now makes $70 a week. What is the % increase?
Options:
(A) 16%
(B) 16.66%
(C) 17.9%
(D) 20%
(E) 40%
answer: Stream of consciousness: Increase = (20/50)*100 = (2/5)*100 = 40%. The answer is (E).

q: A rectangular garden is 12m by 5m, what is its area?
Options:
(A) 12 square meters
(B) 5 square meters
(C) 44 square meters
(D) 60 square meters
(E) 22 square meters
a: Stream of consciousness: Area of a Rectangle: A = w h
D) 60 square meters The answer is (D).

question: Look at this series: 201, 202, 204, 207, ... What number should come next?
Options:
(A) 211
(B) 205
(C) 224
(D) 267
(E) 269
answer: Stream of consciousness: In this addition series, 1 is added to the first number; 2 is added to the second number; 3 is added to the third number; 4 is added to the fourth number; and go on. The answer is (A).

q: A train 490 m long, running with a speed of 63 km/hr will pass a tree in?
Options:
(A) 18 sec
(B) 16 sec
(C) 76 sec
(D) 15 sec
(E) 28 sec
a: Stream of consciousness: Speed = 63 * 5/18 = 35/2 m/sec
Time taken = 490 * 2/35 = 28 sec The answer is (E).

q: The floor of a rectangular room is 17 m long and 12 m wide. The room is surrounded by a veranda of width 2 m on all its sides. The area of the veranda is :
Options:
(A) 124 m2
(B) 132 m2
(C) 148 m2
(D) 152 m2
(E) None of these
a:
Stream of consciousness: Area of the outer rectangle = 21 16 = 336 m2
Area of the inner rectangle = 17 12 = 204 m2
Required area = (336 204) = 132 m2 The answer is (B).