Step-by-step explanation:
A. 16 feet : 48feets
as both side unit is same that is 'feet', we can directly divide the teams
ans. 1:3 (I.e.16/48)
B. 700m : 2km
here both units are not same so that at first we should convert the km to m
700m : 2*1000 m (i.e. 1km = 1000m)
= 700m : 2000m
= 7:20