There are ten boxes of four different types (A, B, C and D) namely- A1, B1, C1, D1, A2, B2, C2, A3, C3 and D2 are placed one above another. Each box contains different mobile phones viz. HTC, Apple, Samsung, Nokia, Lenovo, Sony, Moto, Lava, Vivo and LG but not necessarily in same order.
Box D1 doesn’t contain Moto is kept at a gap of three box from one contains Lava. Box C1 is kept at a gap of one box from box that contains Apple. The box which contains Moto is neither kept immediately above or below of the one contains Lava nor at any place above box B2. Box A3, which is neither kept adjacent to one contains LG nor contains Sony, is kept at a gap of three boxes from one which contains Samsung. Box B2 contains Nokia is kept ata gap of one box from box D1, which is not kept immediately above or below of the one contains Vivo. Box contains Samsung is kept immediately above box D2. No two box of same type is kept adjacent to each other. Box C3 doesn’t contain Vivo. Box contains LG is kept at a gap of two box from box B2. Box A2, which is neither kept at bottom or contains Lava, is kept at a gap of three box from one contains Moto. Number of boxes kept below box B1 is one more than number of boxes above box A1, which doesn’t contain LG. The one contains Vivo is kept third from bottom and is kept adjacent to the box contains Lava. Box contains HTC is kept at any place below one contains Sony. Box which contains Apple is kept at a gap of one box from one which contains Moto.