161: Three flags, each of different colour, are available for a military exercise. Using these flags, different codes can be generated by waving

(i) Single flag of different colours, or
(ii) Any two flags in a different sequence of colours, or
(iii) Three flags in a different sequence of colour

The maximum number of codes that can be generated is
(a) 6
(b) 9
(c) 15
(d) 18
162: Where is Davos the venue of the annual meeting of World Economic Forum located?

(a) France
(b) Germany
(c) Switzerland
(d) Luxembourg
163: If you travel through the Himalayas, you are likely to see which of the following plants naturally growing there?

1. Oak
2. Rhododendron
3. Sandalwood

Select the correct answer using the code given below.

(a) 1 and 2 only
(b) 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
164: In the map shown in the given figure, rivers labelled as 1, 2, 3 and 4 are respectively

(a) Kosi, Gomati, Ghaghara and Gandak
(b) Kosi, Ganga, Gomati and Ghaghara
(c) Gandak, Ganga, Gomati and Ghaghara
(d) Teesta, Gomati, Ghaghara and Kosi
165: In the human body, which structure is the appendix attached to ?

(a) The gall bladder
(b) The large intestine
(c) The stomach
(d) The small intestine