question:Four of the five parts numbered (a), (b), (c), (d) and (e) are exactly equal. Which of the parts is not equal to the other four? The number of that part is the answer.
Options:
(A) (2x + 3y) 2
(B) (2y x) 2 + y(16x + 5y)
(C) 4x(x + 2y) + y(4x + 9y)
(D) (2x + 2y) 2 + y(4x + 5y)
(E) (2x y) 2 + 8y(2x + y)
answer:(B)
Stream of consciousness:Others are requal to 4x2 + 9y2 + 12xy.

question:Using all the letters of the word "THURSDAY", how many different words can be formed?
Options:
(A) 8!
(B) 1
(C) 7
(D) 6
(E) 5
answer:(A)
Stream of consciousness:Total number of letters = 8
Using these letters the number of 8 letters words formed is 8P8 = 4.

question:Calculate the largest 5 digit number which is exactly divisible by 77?
Options:
(A) 99111
(B) 99946
(C) 99869
(D) 99792
(E) 99654
answer:
(B)
Stream of consciousness:Largest 4 digit number is 99999
After doing 99999 77 we get remainder 53
Hence largest 5 digit number exactly divisible by 77 = 99999 - 53 = 99946