Row 18: K35, turn (35 sts).
Row 19: K35.
Row 20: K30, turn (30 sts).
Row 21: K30.
Row 22: P25, turn (25 sts).
Row 23: K25.
Row 24: K20, turn (20 sts).
Row 25: K20.
Row 26: P15, turn (15 sts).
Row 27: K15.
Row 28: K10, turn (10 sts).
Shown with a cast-on count of 40 stitches.