Direction: Read the following information carefully and answer the question that follow.

Eight boxes B1, B2, B3, B4, B5, B6, B7 and B8 are kept one above another not necessarily in the same order. The lowermost box is numbered as 1 and the topmost box is numbered as 8.

B1 is placed on the even number of position but not placed in 2^nd and 8^th position. Two boxes are between B7 and B4, which is just above the B3 but not at the topmost place. Four boxes are between B1 and B8. Three boxes are between B1 and B6. Two boxes between B3 and B5, which is not the topmost box.