Eight friends namely, A, B, C, E, W, X, Y and Z lives in eight different floors of the same building, but not necessarily in the same order. The lowermost floor is numbered 1, second floor as number 2 and so on up to the floor number 8. Each of them visited a mobile store in different months of the same year, starting from January to August, following the order as the person who is living at the topmost floor has visited the store in the month of January, the person living at 7th floor visited the store in February and so on. So that, the person living at lowermost floor visited the store in August. Each of them bought different mobile phones viz. Oppo, Lava, Motorola, HTC, Vivo, Karbonn, Oneplus and Micromax, but not necessarily in the same order.
X lives at an odd number floor just below C, but not at the lowermost floor. Z bought Vivo but not in any of the month before the month of April and lives at an even number floor. Lava is not bought by either E or W. A visited the mobile store in the month of February. The one who bought OnePlus lives immediately below the floor on which the one who bought Karbonn lives. Neither X nor C bought Karbonn. Only one person lives between E and A. Neither W nor B visited the mobile store in the month of March. Oppo is bought by the person who visited the store before March. HTC is purchased just after Oppo. B neither bought Motorola nor Lava and visit the mobile store after the month in which W visits the store. Only one person lives between the person who bought Micromax and Motorola. Y did not buy Lava.
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