In how many years does a sum of Rs. 5000 yield a simple interest of Rs. 16500 at 15% p.a.?
Options:
(A) 22
(B) 20
(C) 25
(D) 30
(E) 35
Answer and stream of consciousness: (A)
Stream of consciousness: T = (100 * 16500)/(15 * 5000) = 22 years

If 10 crates have 98 apples each and how many apples more is required in order to make 100 apples in each crate?
Options:
(A) 5
(B) 10
(C) 15
(D) 20
(E) 0
Answer and stream of consciousness: (D)
Stream of consciousness: Each crate requires 2 apples and totally there are 10 crates so required apples = 10 * 2 = 20

A train of 24 carriages, each of 60 meters length, when an engine also of 60 meters length is running at a speed of 60 kmph. In what time will the train cross a bridge 1.3 km long?
Options:
(A) 2 mins 14 sec
(B) 2 mins 34 sec
(C) 168 sec
(D) 344 sec
(E) 2 mins 44 sec
Answer and stream of consciousness: (C)
Stream of consciousness: D = 25 * 60 + 1300 = 2800 m
T = 2800/60 * 18/5 = 168 se

Is 2 a prime number or a composite number?
Options:
(A) prime number
(B) composite number
(C) both prime composite number
(D) Not prime composite number
(E) Don't Know
Answer and stream of consciousness:
(A)
Stream of consciousness: A Prime Number can be divided evenly only by 1 or itself
So 2 is prime number