Ten models of FTII—Pune are standing in a straight line numbered 1–10 for a fashion parade. Each one of them is wearing different coloured sari. One is in white, two are in different shades of blue, three are in different shades of pink and the remaining four are in different shades of green.
(i) Model in pink sari is not standing next to model in white sari.
(ii) Model in green sari is not standing next to model in blue sari.
(iii) The two models wearing blue saris are adjacent to each other.
(iv) Two models in pink sari are one in the beginning and one at the end.
If the model in white sari is in the fifth position and a model in blue sari is in the fourth position, which of the following must be true?