question:Which of the following numbers is divisible by 11?
Options:
(A) 4424
(B) 2232
(C) 1522
(D) 8524
(E) 9515
answer:(E)
Stream of consciousness:9515. This is the only option with last two digits divisible by 11

question:A train running at the speed of 50 km/hr crosses a pole in 18 seconds. Find the length of the train.
Options:
(A) 150
(B) 188
(C) 250
(D) 288
(E) 300
answer:(C)
Stream of consciousness:Speed = 50*(5/18) m/sec = 125/9 m/sec
Length of Train (Distance) = Speed * Time
(125/9) * 18 = 250 meter

question:What is the area of a square with perimeter 2P ?
Options:
(A) 16p^2
(B) 4P
(C) P^2/5
(D) P/16
(E) P^2/4
answer:
(E)
Stream of consciousness:Each side is p/2
A = (p/2)^2 = (p^2)/4