Answer: There are 39400 inches in 1 kilometers.
Explanation:
Since we have given that
1 cm = 0.394 inches
As we know that
1 m = 100 cm
1 km = 1000 m
1000 m = 100×1000=100000 cm
1 km = 100000 cm
So, it becomes,

Hence, there are 39400 inches in 1 kilometers.