q: How should be added in order to make 2345672 this number is divisible by 9?
Options:
(A) 5
(B) 6
(C) 7
(D) 8
(E) 9
a: Stream of consciousness: Sum of the numbers 2345672 is 29 which is not multiple of 9
Add 7 which makes the sum 36 which is multiple of 9
So digit becomes 2345679 (as we know that if sum multiple of 9 then it is divisible of 9) The answer is (C).

question: Last year, Company M made q dollars in profit. Half of the profit went to the company's founder. The rest was split evenly among his Three other partners. In terms of q, how much did each of the other partners receive?
Options:
(A) q/4
(B) q/5
(C) q/6
(D) q/7
(E) q/8
answer: Stream of consciousness: Profit = q
Profit to company founder = q/2
Profit to other partners = q/2
Number of other partners = 3
Profit to each partner = (q/2)/3 = q/6 The answer is (C).

q: A number when divided by 221 gives a remainder 43, what remainder will be obtained by dividing the same number 17?
Options:
(A) 11
(B) 10
(C) 9
(D) 8
(E) 7
a: Stream of consciousness: 221 + 43 = 264/17 = 9 (Remainder) The answer is (C).

question: A certain number when divided by 39 leaves a remainder 20, what is the remainder when the same number is divided by 13?
Options:
(A) 7
(B) 8
(C) 9
(D) 0
(E) 1
answer: Stream of consciousness: 39 + 20 = 59/13 = 7 (Remainder) The answer is (A).

q: What is the % change in the area of a rectangle when its length increases by 20% and its width decreases by 20%?
Options:
(A) 0%
(B) 20% increase
(C) 20% decrease
(D) 4% decrease
(E) Insufficient data
a: Stream of consciousness: (12/10)*(8/10) = 96/100 of original area
96/100 is a 4% decrease from 100/100 -> The answer is (D).

q: How much 80% of 40 is greater than 10% of 15?
Options:
(A) 18
(B) 99
(C) 19
(D) 18
(E) 17
a:
Stream of consciousness: (80/100) * 40 (10/100) * 15
32 - 15 = 17 The answer is (E).