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 300 newborn members of the population, approximately how many would be expected to survive the first 3 months of life?
Options:
(A) 219
(B) 246
(C) 252
(D) 262
(E) 270
a: Stream of consciousness: Number of newborns that can die in first month = 1/10 * 300 = 30
Survived = 270
Number of newborns that can die in second month = 1/10 * 270 = 27
Survived = 243
Number of newborns that can die in third month = 1/10 * 243 = 24
Survived = 219 The answer is (A).

question: Every year an amount increases by 1/8th of itself. How much will it be after two years if its present value is Rs.64000?
Options:
(A) 81000
(B) 81007
(C) 81008
(D) 81066
(E) 81022
answer: Stream of consciousness: 64000* 9/8 * 9/8 = 81000 The answer is (A).

q: What should come in place of the question mark (?) in the following equation?
5679 + 1438 2015 = ?
Options:
(A) 5192
(B) 5012
(C) 5102
(D) 5002
(E) None of these
a: Stream of consciousness: ? = 5679 + 1438 2015 = 5102 The answer is (C).

question: A can do a piece of work in 14 days. When he had worked for 2 days B joins him. If the complete work was finished in 8 days. In how many days B alone can finish the work?
Options:
(A) 18
(B) 77
(C) 66
(D) 55
(E) 14
answer: Stream of consciousness: 8/14 + 6/x = 1
X = 14 days The answer is (E).

q: Twenty percent of Country Y's yearly exports come from fruit exports. One-sixth of all fruit exports from Country Y are orange exports. If country Y generates $5 million from its orange exports, how much money does it generate from its yearly total of exports?
Options:
(A) $21.25m
(B) $25.5m
(C) $106.25m
(D) $127.5m
(E) $150m
a: Stream of consciousness: 2/10*1/6*(total) = 5
1/30*(total) = 5
(total) = 5*30 = 150 The answer is (E).

q: What is the area of a rectangle whose length is twice its width and whose perimeter is equal to that of a square whose area is 1?
Options:
(A) 1/9 sq units.
(B) 4/9 sq units.
(C) 8/9 sq units.
(D) 7/9 sq units.
(E) 6/9 sq units.
a:
Stream of consciousness: Area will be 2/3 *4/3 = 8/9 sq units. The answer is (C).