Question
Which of the following combination is
true? Study the following information carefully and answer the below questions Six persons- A, B, C, D, E, and F are sitting on the circular table facing the center. They are using different types of laptops- HP, Apple, Dell, Lenovo, Microsoft, and Sony but not necessarily in the same order. D sits second to the left of the one who uses Sony laptops. The one who uses Sony laptops and the one who uses Dell laptops are immediate neighbors. B sits opposite to the one who sits immediate right of A. B neither uses Sony nor Dell. The one who uses HP sits second to the left of A. The one who uses Lenovo sits immediate left of the one who uses Microsoft. D neither uses Microsoft nor Apple. Either B or E uses Apple. F does not use Dell.Solution
We have, D sits second to the left of the one who uses Sony laptops. The one who uses Sony laptops and the one who uses Dell laptops are immediate neighbors. From the above condition, there are two possibilities.
Again we have, B sits opposite to the one who sits immediate right of A. B neither uses Sony nor Dell. From the above condition, there are four possibilities.
Again we have, The one who uses HP sits second to the left of A. The one who uses Lenovo sits immediate left of the one who uses Microsoft. D neither uses Microsoft nor Apple. From the above condition, Case2, case1a, and case2a get eliminated.
Again we have, Either B or E uses Apple. ┬а F does not use Dell. From the above condition, case1 shows the final arrangement 
рд╕рдорд╛рдирд╛рдзрд┐рдХрд░рдг рд╢рдмреНрджреЛрдВ рдХреЗ рдордзреНрдп рдореЗрдВ рдХрд┐рд╕ рд╡рд┐рд░рд╛рдо рдЪрд┐рд╣реНрди рдХрд╛ рдкреНрд░рдпреЛрдЧ рд╣я┐╜...
рдХреМрди-рд╕рд╛ рд╢рдмреНрдж рд╢реБрджрдз рд╣реИ
рд╕рд╛рд░реНрд╡рдирд╛рдорд┐рдХ рд╡рд┐рд╢реЗрд╖рдг рдХрд╛ рдкреНрд░рдпреЛрдЧ рдХрд┐рд╕ рд╡рд┐рдХрд▓реНрдк рдореЗрдВ рд╣реБрдЖ рд╣реИ ?┬а
'рдЬреНрдЮрд╛рдирд╡рд┐рдЬреНрдЮрд╛рди' рдореЗрдВ рд╕рдорд╛рд╕ рд╣реИ
рдЗрдирдореЗрдВ рд╕реЗ рд╡рд┐рд▓реЛрдо рд╢рдмреНрджреЛрдВ рдХрд╛ рдПрдХ рдЧрд▓рдд рдпреБрдЧреНрдо рд╣реИ:
рдирд┐рдореНрдирд▓рд┐рдЦрд┐рдд рдореЗрдВ рдХреМрди рд╕рд╛ рд╕рд╛ рд╡рд╛рдХреНрдп рд╢реБрджреНрдз рд╣реИ
рдирд┐рдореНрдирд▓рд┐рдЦрд┐рдд рд╢рдмреНрджреЛрдВ рдореЗрдВ рд╕реЗ рд╕рд╛рдзреНрдп рдХрд╛ рд╕рд╣реА рдкрд░реНрдпрд╛рдп┬а рд╣реИ ?
рдирд┐рдореНрдирд▓рд┐рдЦрд┐рдд рдореЗрдВ рдХреМрди - рд╕рд╛ рд╡рд┐рдХрд▓реНрдк рд╕рд╣реА рдирд╣реАрдВ рд╣реИ ?
рдкрдВрдХрдЬ (1) / рдкреБрд╕реНрддрдХ (2) / рдиреЗ (3) / рдкрдврд╝реА (4) рд╡рд╛рдХреНрдп рд╕рдВрд░рдЪрдирд╛ рдХрд╛ рд╕рд╣реА рдХреНрд░рдо рдХреНрдпрд╛ ...
┬арджреВрд╕рд░реЛрдВ рдХреЗ рд╕реНрдерд╛рди рдкрд░ рдХрд╛рд░реНрдп рдХрд░рдирд╛' рдХреЗ рд▓рд┐рдП рдПрдХ рд╢рдмреНрдж рд╣реИ┬а