question: What will come in place of the x in the following Number series? 49920, 4160, 416, x
Options:
(A) 52
(B) 3
(C) 4
(D) 5
(E) 6
answer: Stream of consciousness: 49920 /12 = 4160
3840 /10 = 416
416 /8 = 52 The answer is (A).


q: If rupee one produces rupees nine over a period of 40 years, find the rate of simple interest?
Options:
(A) 22 1/6 %
(B) 22 8/2 %
(C) 25 1/2 %
(D) 22 1/2 %
(E) 22 5/2 %
a: Stream of consciousness: 9 = (1*40*R)/100
R = 22 1/2 % The answer is (D).


question: 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 700 newborn members of the population, approximately how many would be expected to survive the first 3 months of life?
Options:
(A) 511
(B) 546
(C) 552
(D) 562
(E) 570
answer: Stream of consciousness: Number of newborns that can die in first month = 1/10 * 700 = 70
Survived = 630
Number of newborns that can die in second month = 1/10 * 630 = 63
Survived = 567
Number of newborns that can die in third month = 1/10 * 567 = 56
Survived = 511 The answer is (A).


q: A can do a job in 18 days and B can do it in 30 days. A and B working together will finish twice the amount of work in days?
Options:
(A) 22 1/6
(B) 22 1/2
(C) 22 1/0
(D) 22 1/9
(E) 22 1/1
a: Stream of consciousness: 1/18 + 1/30 = 8/90 = 4/45
45/4 = 11 1/4 *2 = 22 1/2 days The answer is (B).


question: A women purchased 3 towels @ Rs.100 each, 5 towels @ Rs.150 each and two towels at a certain rate which is now slipped off from his memory. But she remembers that the average price of the towels was Rs.155. Find the unknown rate of two towels?
Options:
(A) A) 400
(B) B) 450
(C) C) 500
(D) D) 550
(E) E) 600
answer: Stream of consciousness: 10 * 155 = 1550
3 * 100 + 5 * 150 = 1050
1550 – 1050 = 500 The answer is (C).


question: The product of face value of 3 and local value of 6 in the numeral 78934064 is
Options:
(A) 18
(B) 24
(C) 180
(D) 240
(E) 108
answer:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Stream of consciousness: (Face value of 3) x (Local value of 6) = (3 x 60) = 180 The answer is (C).