12 miles = _____ km

Q. 0.8 miles = km

Q. How many $\frac{1}{2}$ miles are in $12$ miles?

Q. At his usual running rate Rahul can travel $12$ miles downstream in a certain river in $6$ hours less than it takes him to travel the same distance upstream. But if he could double his usual rowing rate for his $24$ mile round trip the downstream $12$ miles would then take only one hour less than the upstream $12$ miles. What is the speed of the current in miles per hour?

Q. 4300 m = km

Q. $4200m$ = $km$