Harry is trying to complete his hill walking scouts badge. He is using a map with a scale of 1cm :2km. Harry has completed 4cm of the route on his map. How far has he actually walked?

8km

Step-by-step explanation:

Given data

Scale is 1cm :2km

that is 1cm to represent 2km

hence

if 1cm represents 2km

the 4cm will be x

cross multiply

4*2= x

x= 8km

Hence he walked 8km

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles