q: A man walks at a speed of 3 km/hr and runs at a speed of 9 km/hr. How much time will the man require to cover a distance of 18 km, if he completes half of the distance, i.e., (9) km on foot and the other half by running?
Options:
(A) 4
(B) 5
(C) 6
(D) 8
(E) 9
a: Stream of consciousness: Required time = (9)/3 + (9)/9 = 4 hours. The answer is (A).

question: A train 360 m long is running at a speed of 45 km/hr. In what time will it pass a bridge 340 m long?
Options:
(A) 56 sec
(B) 42 sec
(C) 45 sec
(D) 48 sec
(E) 50 sec
answer: Stream of consciousness: Speed = 45 * 5/18 = 25/2 m/sec
Total distance covered = 360 + 340 = 700 m
Required time = 700 * 2/25 = 56 sec The answer is (A).

q: What is the sum of all 5 digit numbers which can be formed with the digits 0,1,2,3,4 without repetation?
Options:
(A) 2599980
(B) 235500
(C) 923580
(D) 765432
(E) 765434
a: Stream of consciousness: 10(11111)*4! - 10(1111)3! = 2599980 The answer is (A).

question: If P(A) = 2/15, P(B) = 4/15, and P(A B) = 11/15 Find P(A|B)
Options:
(A) 11/4
(B) 2/3
(C) 3/2
(D) 4/5
(E) 4/7
answer: Stream of consciousness: P(A|B) = P(A B)/P(B)
P(A|B) = (11/15)/(4/15) = 11/4. The answer is (A).

q: Rs.800 amounts to Rs.920 in 3 years at simple interest. If the interest is increased by 3%, it would amount to how much?
Options:
(A) 226
(B) 992
(C) 665
(D) 771
(E) 211
a: Stream of consciousness: (800*3*3)/100 = 72
920 + 72 = 992 The answer is (B).

q: Which one of the following is a prime number?
Options:
(A) 10
(B) 61
(C) 49
(D) 75
(E) 91
a:
Stream of consciousness: 61 is divisible by 1, and itself. So, it is a prime number. The answer is (B).