In what time will a railway train 20 m long moving at the rate of 36 kmph pass a telegraph post on its way?
Options:
(A) 5 sec
(B) 4 sec
(C) 3 sec
(D) 6 sec
(E) 2 sec

T = 20/36 * 18/5 = 2 sec So the answer is: (E).

What will come in place of the x in the following Number series? 2, 7, 27, 107, 427, x
Options:
(A) 1427
(B) 1607
(C) 1707
(D) 2047
(E) 2147

2
2 4 - 1 = 7
7 4 - 1 = 27
27 4 - 1 = 107
107 4 - 1 = 427
427 4 - 1 = 1707 So the answer is: (C).

Four of the five parts numbered as (a), (b), (c), (d) and (e)in the following equations are exactly equal. You have to find out the part that is not equal to the other parts. The number of that part is the answer.
Options:
(A) a2 + 5ab + 6b2
(B) (a + 3b) (a + 2b)
(C) a(a + 3b) + 2b(a + 3b)
(D) (3a + b) (a + 2b)
(E) a(a + 2b) + 3b(a + 2b)

The other parts are equal to a2 + 5ab + 6b2. So the answer is: (D).

The sale price sarees listed for Rs.400 after successive discount is 20% and 5% is?
Options:
(A) 338
(B) 277
(C) 342
(D) 882
(E) 304
400*(80/100)*(95/100) = 304 So the answer is: (E).