question: The compound ratio of 2/3, 6/7, 1/3 and 3/8 is given by?
Options:
(A) 7/98
(B) 1/48
(C) 1/98
(D) 1/96
(E) 3/42
answer: Stream of consciousness: 2/3 * 6/7 * 1/3 * 3/8 = 36/504 = 3/42 The answer is (E).

q: In what time a sum of money double itself at 8% per annum simple interest?
Options:
(A) 33 1/8%
(B) 33 1/3%
(C) 33 7/3%
(D) 32 1/3%
(E) 12 1/2%
a: Stream of consciousness: P = (P*8*R)/100
R = 12 1/2% The answer is (E).

question: What approximate value should come in place of question mark (?) in the following equation
287.532 + 1894.029 757.48 = 443.095 + ?
Options:
(A) 870
(B) 790
(C) 680
(D) 770
(E) 890
answer: Stream of consciousness: ? = 285 + 1895 755 745 or, ? = 680 The answer is (C).

q: How many positive integers less than 500 can be formed using the numbers 1,2,3,and 5 for digits, each digit being used only once.
Options:
(A) 22
(B) 34
(C) 73
(D) 26
(E) 11
a: Stream of consciousness: Single digit numbers = 4
Double digit numbers = 4 x 3 = 12
Three digit numbers = 3 x 3 x 2 x 1 = 18
Total = 34 The answer is (B).

question: he population of a city is 140,000. If it increases at the rate of 6% per annum, then what will be its population 2 years hence?
Options:
(A) 1797787
(B) 1597723
(C) 159776
(D) 159728
(E) 157304
answer: Stream of consciousness: Population after n years = P [1 + (R/100)]2
Population after 2 years = 140000 * [1 + 6/100]2 = (160000 x 53/50 x 53/50) = 157304 The answer is (E).

question: How much 60% of 50 is greater than 40% of 30?
Options:
(A) 18
(B) 28
(C) 26
(D) 27
(E) 23
answer:
Stream of consciousness: (60/100) * 50 (40/100) * 30
30 - 12 = 18 The answer is (A).