0.6 kg;

260×2.5-40=660 (unit);

The data about the circumference is unclear;

4600/(3. 14×0.8×400)≈4.6 (points);

Chrysanthemum accounted for 90/360= 1/4.

A string of red 150/360=5/ 12

Up 120/360= 1/3

Diameter: 157/3. 14=50

Total area: 3. 14×(50/2) square = 1962.5.

Chrysanthemum area:1962.5×1/4 = 490.625.

A string of red colors; 1962.5*5/ 12=8 18

rose: 1962.5× 1/3 = 654

Hope to adopt!