question: How many seconds will a train 100 meters long take to cross a bridge 150 meters long if the speed of the train is 36 kmph?
Options:
(A) 22
(B) 28
(C) 25
(D) 77
(E) 88
answer: Stream of consciousness: D = 100 + 150 = 250
S = 36 * 5/18 = 10 mps
T = 250/10 = 25 se The answer is (C).

q: A 240 meter long train crosses a man standing on the platform in 6 sec. What is the speed of the train?
Options:
(A) 229
(B) 144
(C) 278
(D) 126
(E) 112
a: Stream of consciousness: S = 240/6 * 18/5 = 144 kmph The answer is (B).

question: P and Q invested in a shop. The profits were divided in the ratio of 2 : 3 respectively. If P invested Rs. 40,000, the amount invested by Q is:
Options:
(A) 35000
(B) 40000
(C) 50000
(D) 60000
(E) None
answer: Stream of consciousness: Suppose Q invested Rs. y. Then, 40000/y = 2/3 or y = [40000 x 3 / 2] = 60000. The answer is (D).

q: There are 13person among whom 2are brother. The total no.of ways in which these persons can be seated around a round table so that exactly 1person sit between the brothers, is equal to?
Options:
(A) 4!*2!
(B) 7!*2!
(C) 6!*1!
(D) 10!*2!
(E) 5!*1!
a: Stream of consciousness: Total number of ways = 10!*2!. The answer is (D).

question: In a school of 850 boys, 46% of Muslims, 28% Hindus, 10% Sikhs and the remaining of other communities. How many belonged to the other communities?
Options:
(A) A) 136
(B) B) 627
(C) C) 153
(D) D) 721
(E) E) 159
answer: Stream of consciousness: 46 + 28 + 10 = 84%
100 84 = 16%
850 * 16/100 = 136 The answer is (A).

question: There are different 10 circles. What is the number of the greatest possible points with which the circles intersect?
Options:
(A) 90
(B) 100
(C) 110
(D) 180
(E) 200
answer:
Stream of consciousness: Maximum points of intersection between n different circles = n*(n - 1) = 10*9 = 90 The answer is (A).