Answer:
Approximately 13,333,333 snowflakes (rounded)
Step-by-step explanation:
Total Blocks = 40
Each Block weight = 1 kg = 1000 grams
Total weight of all 40 blocks = 1000*40 = 40,000 grams
Now, given each snowflakes weight to be [tex]3*10^{-3}[/tex] grams, or 0.003 grams
The number of snowflakes will be:
40,000/0.003 = 13333333.33 flakes
Approximately 13333333 snowflakes (rounded)