A person at the top of a hill observes that the angles of depression of two consecutive kilometre stones, on a road leading to the foot of the hill were 30° and 60°. The height of the hill is
1). 2 km
2). $\frac{2}{\sqrt{3}}$ km
3). $\frac{4}{\sqrt{3}}$ km
4). $\frac{\sqrt{3}}{2}$ km
Name of the present British Prime Minister is
1). Herman Rompuy
2). Mrs. Thacher
3). Michael Fallon
4). David Cameron
The sum of the finite series 5 + 8+ 11 + .... + 47+ 50 is
1). 442
2). 440
3). 244
4). 435
the real root of the equation $x^{2}$ - 6x + 9
1). -6
2). -9
3). 6
4). -3
Arvind Kejrival is the leader of
(1) (2)
(3)
(4)
1). DMK
2). NCP
3). Shiv Sena
4). Aam Admi Party