q: In a certain animal population, for each of the first 3 months of life, the probability that an animal will die during that month is 1/10. For a group of 200 newborn members of the population, approximately how many would be expected to survive the first 3 months of life?
Options:
(A) 140
(B) 146
(C) 152
(D) 162
(E) 170
a: Stream of consciousness: Number of newborns that can die in first month = 1/10 * 200 = 20
Survived = 180
Number of newborns that can die in second month = 1/10 * 180 = 18
Survived = 162
Number of newborns that can die in third month = 1/10 * 162 = 16
Survived = 146 The answer is (B).

question: What should come in place of the question mark (?) in the following equation?
9568 6548 1024 = ?
Options:
(A) 2086
(B) 1996
(C) 2293
(D) 1896
(E) None of these
answer: Stream of consciousness: ? = 9568 6548 1024 = 1996. The answer is (B).

q: In how many different ways can the letters of the word JUDGE be arranged so that the vowels always come together?
Options:
(A) 48
(B) 24
(C) 120
(D) 60
(E) None of these
a: Stream of consciousness: Reqd. number = 4! 2! = 24 2 = 48 The answer is (A).

question: Four of the following five parts numbered (a), (b), (c), (d) and (e) are exactly equal. The number of the part which is not equal to the other four parts is your answer.
Options:
(A) 2x2 3xy + y2
(B) (2x + y) (x y)
(C) (x y) 2 + x(x y)
(D) (2x y) 2 x(2x y)
(E) (2x y) 2 2x2 + xy
answer: Stream of consciousness: Other parts are equal to
2x2 + y2 3xy. The answer is (B).

q: Calculate the circumference of a circular field whose radius is 6 centimeters.
Options:
(A) 2 cm
(B) 1 cm
(C) 15 cm
(D) 12 cm
(E) 19 cm
a: Stream of consciousness: Circumference C is given by
C = 2r = 2*6 = 12 cm The answer is (D).

q: What is the are of an equilateral triangle of side 2 cm?
Options:
(A) 3
(B) 649
(C) 644
(D) 643
(E) 642
a:
Stream of consciousness: Area of an equilateral triangle = 3/4 S2
If S = 2, Area of triangle = 3/4 * 2 * 2 = 3 cm2; The answer is (A).