Q: (998-1)(998-2)(998-3)........(998-n)=....... when n>1000
Options:
(A) 4
(B) 3
(C) 2
(D) 1
(E) 0
A: OK... Stream of consciousness: The term (998-998) makes the whole expression = 0.
The answer is (E).

Q: What is theleast number should be added to 1056, so the sum of the number is completely divisible by 23?
Options:
(A) 1
(B) 2
(C) 4
(D) 5
(E) 6
A: OK... Stream of consciousness: (1056 / 23) gives remainder 21
21 + 2 = 23, So we need to add 2
The answer is (B).

Q: A train 360 m long is running at a speed of 45 km/hr. In what time will it pass a bridge 140 m long?
Options:
(A) 40 sec
(B) 11 sec
(C) 88 sec
(D) 19 sec
(E) 10 sec
A: OK... Stream of consciousness: Speed = 45 * 5/18 = 25/2 m/sec
Total distance covered = 360 + 140 = 500 m
Required time = 500 * 2/25 = 40 sec
The answer is (A).

Q: The number N is H,284, where H represents the ten's digit. If N is divisible by 6, what is the value of H?
Options:
(A) 1
(B) 2
(C) 3
(D) 5
(E) 8
A:
OK... Stream of consciousness: If the number is divisible by 6, then the sum of the digits must also be divisible by both 3 and 2. Only 1 yields such a number.
The answer is (A).