q: Find the simple interest on Rs.500 for 9 months at 6 paisa per month?
Options:
(A) 288
(B) 270
(C) 287
(D) 209
(E) 271
a: Stream of consciousness: I = (500*9*6)/100 = 270 The answer is (B).

question: A train running at the speed of 180 km/hr crosses a pole in 8 seconds. Find the length of the train.
Options:
(A) 150
(B) 88
(C) 480
(D) 288
(E) 400
answer: Stream of consciousness: Speed = 180*(5/18) m/sec = 50 m/sec
Length of Train (Distance) = Speed * Time
50 *8 = 400 meter The answer is (E).

q: A no. when divided by the sum of 555 and 445 gives 2times their difference as quotient & 30 as remainder. Find the no. is?
Options:
(A) 234354
(B) 243435
(C) 243445
(D) 245667
(E) 220030
a: Stream of consciousness: (555 + 445) * 2 * 110 + 30 = 220000 + 30 = 220030 The answer is (E).

question: At what rate percent on simple interest will a sum of money double itself in 40 years?
Options:
(A) 3 1/3%
(B) 2 1/2%
(C) 3 9/3%
(D) 3 2/3%
(E) 3 6/3%
answer: Stream of consciousness: P = (P*40*R)/100
R = 2 1/2% The answer is (B).

q: How many positive integers less than 50 have a reminder 01 when divided by 4?
Options:
(A) 13
(B) 14
(C) 15
(D) 16
(E) 17
a: Stream of consciousness: 1 also gives the remainder of 1 when divided by 4. So, there are total of 13 numbers. The answer is (A).

q: If 85 percent of the test takers taking an old paper and pencil GMAT exam answered the first question on a given math section correctly, and 75 percent of the test takers answered the second question correctly, and 15 percent of the test takers answered neither question correctly, what percent answered both correctly?
Options:
(A) 60 %
(B) 65 %
(C) 70%
(D) 75%
(E) 80%
a:
Stream of consciousness: {Total} = {First correctly} + {Second correctly} - {Both correctly} + {Neither correctly}
100 = 85 + 75 - {Both correctly} + 15
{Both correctly} = 75. The answer is (D).