1-2/32's merino with take-up of 2·25
Length 320 yd., 24 courses per inch, 60 in. wide.
For the silk the counts 40/2 are taken as 40's single—
| 24 × 60 × 320 × 1·75 | |
| = 24 lb. | |
| 40 × 840 |
For merino—
| 24 × 60 × 320 × 2·25 | |
| = 77·14 lb. Total 101·14 lb. | |
| 16 × 840 |
Example 17.—Find the merino counts of yarn to produce 72 yd. of fabric 56 in. wide, 18 courses per inch, 24 lb. of material with a take-up in knitting of 2½.
The formula for this type of calculation can be derived from that given for finding the weight, all items being the same except that the weight is substituted for the counts.
Following formula 12—
| 18 × 56 × 72 × 2½ | |
| = 9's counts single or 2/18's. | |
| 24 × 840 |