2400

yards of weft in 1 yard of cloth

90

yards length of piece

216000

yards of weft in piece.

Therefore, weight of weft = 21600033600 = 6 lbs. 66⁄7 oz.

Weight of weft = 6 lbs. 66⁄7 oz.

Weight of warp = 7 lbs. 14⅔ oz.