Question

4 miles is equal to 6km. how many kilometres are equal to 18 miles? how many miles are equal to 42 km?

Answer 1

18×1.5=27.0km
and 42/1.5=28 miles

Answer 2

4 miles = 6Km.
hence, 1 mile = 6/4 km = 1.5 km.
Now, 18 miles = 18 × 1.5 = 27 km.
again, 42 km = 42/1.5 = 28 miles.