question: Find the least number must be added to 228712 so that remaining no.is divisible by 9?
Options:
(A) 5
(B) 3
(C) 1
(D) 6
(E) 2
answer: Stream of consciousness: On dividing 228712 by 9 we get the remainder 4, so 5 should be subtracted The answer is (A).

q: Ronald and Elan are working on an assignment. Ronald takes 6 hrs to type 32 pages on a computer, while Elan takes 5 hrs to type 40 pages. How much time will they take, working together on two different computers to type an assignment of 110 pages?
Options:
(A) 8 hrs 18 min
(B) 8 hrs 85 min
(C) 8 hrs 15 min
(D) 7 hrs 15 min
(E) 8 hrs 25 min
a: Stream of consciousness: Number of pages typed by Ronald in 1 hour = 32/6 = 16/3
Number of pages typed by Elan in 1 hour = 40/5 = 8
Number of pages typed by both in 1 hour = (16/3 + 8) = 40/3
Time taken by both to type 110 pages = (110 * 3/40) = 8 1/4 = 8 hrs 15 min The answer is (C).

question: The least number of complete years in which a sum of money put out at 20% C.I. will be more than doubled is?
Options:
(A) 6
(B) 4
(C) 5
(D) 3
(E) 1
answer: Stream of consciousness: P(1 + 20/100)n > 2P or (6/5)n > 2
Now, (6/5 * 6/5 * 6/5 * 6/5) > 2. So, n = 4 years. The answer is (B).

q: The compound ratio of 2/5, 6/7, 1/3 and 1/8 is given by?
Options:
(A) 7/98
(B) 1/70
(C) 1/98
(D) 1/96
(E) 1/68
a: Stream of consciousness: 2/5 * 6/7 * 1/3 * 1/8 = 12/840 = 1/70 The answer is (B).

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).

question: The difference between the place value and the face value of 6 in the numeral 856973 is
Options:
(A) 5994
(B) 6973
(C) 973
(D) 1000
(E) 7000
answer:
Stream of consciousness: (Place value of 6) - (Face value of 6) = (6000 - 6) = 5994 The answer is (A).