1st = 12 stickers
2nd = 18 stickers
3rd = 30 stickers
Step-by-step explanation:
Total stickers = 60
Ratio of the three students = 2:3:5
Let the ratio of the 1st student = 2
The ratio of the 2nd student = 3
The ratio of the 3rd student = 5
Total ratio = 2 + 3 + 5 = 10