Question
Which of the following pairs has only one person
sitting-between them, if the counting is done in clockwise direction? Study the following information carefully and answer the questions given below: Eight friends A, B, C, D, E, F, G and H are sitting in a circle facing towards the centre. Each of them likes laptops of different brands i.e. HP. Dell, Sony, Toshiba. Apple, Lenovo, HCL and Acer but not necessarily in the same order. E, F, G and H are females and A, B, C and D are males. Neither two female nor two male are adjacent with each other. C who likes Sony, is sitting third to the right of F. F is sitting third to the right of D who likes HP. No male likes Apple and Toshiba. B is not the neighbour of D and C. A is sitting third to the right of G who likes HCL. E, who likes Lenovo, is sitting between D and C. The one who likes Apple is not the neighbour of those who like HCL and Sony. The one who likes Dell is not an immediate neighbour of H.Solution
15   8   9   15   32    ?    250.5
80    81.5    83.5     ?     89      92.5
...8      27       64      125     ?       343Â
...18, 21, 45, 138, 555, ?
135, 148, ?, 184, 207, 236
33Â Â Â 41Â Â Â 25Â Â Â 49Â Â Â 17Â Â Â Â ?
25   25   37.5   ?   328.125   1804.6875
120, 130, 145, 165, ?, 220
11    16    42    141    ?   2945   17700
...80, 116, 52, ?, 8, 204