3231: A, B, C, D, E and F, not necessarily in that order are sitting on six chairs regularly placed around a round table. It is observed that
1. A is between D and F,
2. C is opposite D,
3. and D and E are not on neighbouring chairs.
Which one of the following pairs must be sitting on neighbouring chairs ?
(a) A and B
(b) C and E
(c) B and F
(d) A and C
3232: Which of the following statements is true?
(a) Both salinity and density of sea increase with depth
(b) Both salinity and density of sea decrease with depth
(c) Salinity increases but density of sea decreases with depth
(d) Salinity decreases but density of sea increases with depth
3233: The famous dialogue between, Nachiketa and Yama is mentioned in the
(a) Chhandogyopanishad
(b) Mundakopanishad
(c) Kathopanishad
(d) Kenopanishad
3234: The Mongols under Gengis Khan invaded India during the reign of
(a) Balban
(b) Feroze Tughlaq
(c) Iltutmish
(d) Muhammad bin Tughlaq
3235: If the stars are seen to rise perpendicular to the horizon by an observer, he is located on the
(a) Equator
(b) Tropic of Cancer
(c) South Pole
(d) North Pole